mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-09 20:54:40 +00:00
615 lines
14 KiB
C++
615 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/BoxObject.h"
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#include "nsCOMPtr.h"
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#include "nsIDocument.h"
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#include "nsIPresShell.h"
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#include "nsPresContext.h"
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#include "nsIContent.h"
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#include "nsContainerFrame.h"
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#include "nsIDocShell.h"
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#include "nsReadableUtils.h"
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#include "nsDOMClassInfoID.h"
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#include "nsView.h"
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#ifdef MOZ_XUL
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#include "nsIDOMXULElement.h"
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#else
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#include "nsIDOMElement.h"
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#endif
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#include "nsLayoutUtils.h"
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#include "nsISupportsPrimitives.h"
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#include "nsSupportsPrimitives.h"
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#include "mozilla/dom/Element.h"
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#include "nsComponentManagerUtils.h"
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#include "mozilla/dom/BoxObjectBinding.h"
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// Implementation /////////////////////////////////////////////////////////////////
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namespace mozilla {
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namespace dom {
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// Static member variable initialization
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// Implement our nsISupports methods
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NS_IMPL_CYCLE_COLLECTION_CLASS(BoxObject)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(BoxObject)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(BoxObject)
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// QueryInterface implementation for BoxObject
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(BoxObject)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsIBoxObject)
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NS_INTERFACE_MAP_ENTRY(nsPIBoxObject)
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(BoxObject)
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// XXX jmorton: why aren't we unlinking mPropertyTable?
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NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(BoxObject)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
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if (tmp->mPropertyTable) {
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for (auto iter = tmp->mPropertyTable->Iter(); !iter.Done(); iter.Next()) {
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cb.NoteXPCOMChild(iter.UserData());
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}
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}
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(BoxObject)
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// Constructors/Destructors
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BoxObject::BoxObject()
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: mContent(nullptr)
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{
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}
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BoxObject::~BoxObject()
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{
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}
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NS_IMETHODIMP
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BoxObject::GetElement(nsIDOMElement** aResult)
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{
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if (mContent) {
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return CallQueryInterface(mContent, aResult);
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}
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*aResult = nullptr;
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return NS_OK;
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}
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// nsPIBoxObject //////////////////////////////////////////////////////////////////////////
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nsresult
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BoxObject::Init(nsIContent* aContent)
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{
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mContent = aContent;
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return NS_OK;
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}
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void
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BoxObject::Clear()
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{
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mPropertyTable = nullptr;
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mContent = nullptr;
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}
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void
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BoxObject::ClearCachedValues()
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{
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}
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nsIFrame*
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BoxObject::GetFrame(bool aFlushLayout)
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{
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nsIPresShell* shell = GetPresShell(aFlushLayout);
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if (!shell)
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return nullptr;
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if (!aFlushLayout) {
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// If we didn't flush layout when getting the presshell, we should at least
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// flush to make sure our frame model is up to date.
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// XXXbz should flush on document, no? Except people call this from
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// frame code, maybe?
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shell->FlushPendingNotifications(Flush_Frames);
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}
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// The flush might have killed mContent.
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if (!mContent) {
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return nullptr;
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}
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return mContent->GetPrimaryFrame();
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}
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nsIPresShell*
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BoxObject::GetPresShell(bool aFlushLayout)
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{
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if (!mContent) {
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return nullptr;
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}
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nsCOMPtr<nsIDocument> doc = mContent->GetCurrentDoc();
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if (!doc) {
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return nullptr;
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}
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if (aFlushLayout) {
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doc->FlushPendingNotifications(Flush_Layout);
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}
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return doc->GetShell();
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}
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nsresult
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BoxObject::GetOffsetRect(nsIntRect& aRect)
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{
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aRect.SetRect(0, 0, 0, 0);
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if (!mContent)
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return NS_ERROR_NOT_INITIALIZED;
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// Get the Frame for our content
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nsIFrame* frame = GetFrame(true);
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if (frame) {
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// Get its origin
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nsPoint origin = frame->GetPositionIgnoringScrolling();
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// Find the frame parent whose content is the document element.
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Element* docElement = mContent->GetComposedDoc()->GetRootElement();
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nsIFrame* parent = frame->GetParent();
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for (;;) {
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// If we've hit the document element, break here
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if (parent->GetContent() == docElement) {
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break;
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}
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nsIFrame* next = parent->GetParent();
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if (!next) {
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NS_WARNING("We should have hit the document element...");
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origin += parent->GetPosition();
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break;
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}
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// Add the parent's origin to our own to get to the
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// right coordinate system
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origin += next->GetPositionOfChildIgnoringScrolling(parent);
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parent = next;
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}
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// For the origin, add in the border for the frame
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const nsStyleBorder* border = frame->StyleBorder();
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origin.x += border->GetComputedBorderWidth(NS_SIDE_LEFT);
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origin.y += border->GetComputedBorderWidth(NS_SIDE_TOP);
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// And subtract out the border for the parent
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const nsStyleBorder* parentBorder = parent->StyleBorder();
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origin.x -= parentBorder->GetComputedBorderWidth(NS_SIDE_LEFT);
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origin.y -= parentBorder->GetComputedBorderWidth(NS_SIDE_TOP);
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aRect.x = nsPresContext::AppUnitsToIntCSSPixels(origin.x);
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aRect.y = nsPresContext::AppUnitsToIntCSSPixels(origin.y);
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// Get the union of all rectangles in this and continuation frames.
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// It doesn't really matter what we use as aRelativeTo here, since
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// we only care about the size. Using 'parent' might make things
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// a bit faster by speeding up the internal GetOffsetTo operations.
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nsRect rcFrame = nsLayoutUtils::GetAllInFlowRectsUnion(frame, parent);
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aRect.width = nsPresContext::AppUnitsToIntCSSPixels(rcFrame.width);
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aRect.height = nsPresContext::AppUnitsToIntCSSPixels(rcFrame.height);
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}
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return NS_OK;
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}
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nsresult
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BoxObject::GetScreenPosition(nsIntPoint& aPoint)
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{
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aPoint.x = aPoint.y = 0;
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if (!mContent)
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return NS_ERROR_NOT_INITIALIZED;
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nsIFrame* frame = GetFrame(true);
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if (frame) {
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nsIntRect rect = frame->GetScreenRect();
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aPoint.x = rect.x;
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aPoint.y = rect.y;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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BoxObject::GetX(int32_t* aResult)
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{
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nsIntRect rect;
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GetOffsetRect(rect);
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*aResult = rect.x;
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return NS_OK;
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}
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NS_IMETHODIMP
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BoxObject::GetY(int32_t* aResult)
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{
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nsIntRect rect;
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GetOffsetRect(rect);
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*aResult = rect.y;
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return NS_OK;
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}
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NS_IMETHODIMP
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BoxObject::GetWidth(int32_t* aResult)
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{
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nsIntRect rect;
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GetOffsetRect(rect);
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*aResult = rect.width;
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return NS_OK;
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}
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NS_IMETHODIMP
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BoxObject::GetHeight(int32_t* aResult)
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{
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nsIntRect rect;
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GetOffsetRect(rect);
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*aResult = rect.height;
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return NS_OK;
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}
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NS_IMETHODIMP
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BoxObject::GetScreenX(int32_t *_retval)
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{
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nsIntPoint position;
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nsresult rv = GetScreenPosition(position);
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if (NS_FAILED(rv)) return rv;
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*_retval = position.x;
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return NS_OK;
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}
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NS_IMETHODIMP
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BoxObject::GetScreenY(int32_t *_retval)
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{
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nsIntPoint position;
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nsresult rv = GetScreenPosition(position);
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if (NS_FAILED(rv)) return rv;
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*_retval = position.y;
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return NS_OK;
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}
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NS_IMETHODIMP
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BoxObject::GetPropertyAsSupports(const char16_t* aPropertyName, nsISupports** aResult)
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{
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NS_ENSURE_ARG(aPropertyName && *aPropertyName);
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if (!mPropertyTable) {
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*aResult = nullptr;
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return NS_OK;
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}
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nsDependentString propertyName(aPropertyName);
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mPropertyTable->Get(propertyName, aResult); // Addref here.
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return NS_OK;
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}
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NS_IMETHODIMP
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BoxObject::SetPropertyAsSupports(const char16_t* aPropertyName, nsISupports* aValue)
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{
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NS_ENSURE_ARG(aPropertyName && *aPropertyName);
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if (!mPropertyTable) {
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mPropertyTable = new nsInterfaceHashtable<nsStringHashKey,nsISupports>(4);
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}
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nsDependentString propertyName(aPropertyName);
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mPropertyTable->Put(propertyName, aValue);
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return NS_OK;
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}
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NS_IMETHODIMP
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BoxObject::GetProperty(const char16_t* aPropertyName, char16_t** aResult)
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{
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nsCOMPtr<nsISupports> data;
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nsresult rv = GetPropertyAsSupports(aPropertyName,getter_AddRefs(data));
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NS_ENSURE_SUCCESS(rv, rv);
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if (!data) {
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*aResult = nullptr;
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return NS_OK;
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}
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nsCOMPtr<nsISupportsString> supportsStr = do_QueryInterface(data);
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if (!supportsStr) {
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return NS_ERROR_FAILURE;
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}
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return supportsStr->ToString(aResult);
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}
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NS_IMETHODIMP
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BoxObject::SetProperty(const char16_t* aPropertyName, const char16_t* aPropertyValue)
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{
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NS_ENSURE_ARG(aPropertyName && *aPropertyName);
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nsDependentString propertyName(aPropertyName);
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nsDependentString propertyValue;
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if (aPropertyValue) {
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propertyValue.Rebind(aPropertyValue);
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} else {
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propertyValue.SetIsVoid(true);
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}
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nsCOMPtr<nsISupportsString> supportsStr(do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID));
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NS_ENSURE_TRUE(supportsStr, NS_ERROR_OUT_OF_MEMORY);
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supportsStr->SetData(propertyValue);
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return SetPropertyAsSupports(aPropertyName,supportsStr);
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}
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NS_IMETHODIMP
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BoxObject::RemoveProperty(const char16_t* aPropertyName)
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{
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NS_ENSURE_ARG(aPropertyName && *aPropertyName);
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if (!mPropertyTable) return NS_OK;
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nsDependentString propertyName(aPropertyName);
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mPropertyTable->Remove(propertyName);
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return NS_OK;
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}
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NS_IMETHODIMP
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BoxObject::GetParentBox(nsIDOMElement * *aParentBox)
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{
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*aParentBox = nullptr;
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nsIFrame* frame = GetFrame(false);
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if (!frame) return NS_OK;
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nsIFrame* parent = frame->GetParent();
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if (!parent) return NS_OK;
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nsCOMPtr<nsIDOMElement> el = do_QueryInterface(parent->GetContent());
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*aParentBox = el;
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NS_IF_ADDREF(*aParentBox);
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return NS_OK;
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}
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NS_IMETHODIMP
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BoxObject::GetFirstChild(nsIDOMElement * *aFirstVisibleChild)
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{
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*aFirstVisibleChild = nullptr;
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nsIFrame* frame = GetFrame(false);
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if (!frame) return NS_OK;
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nsIFrame* firstFrame = frame->GetFirstPrincipalChild();
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if (!firstFrame) return NS_OK;
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// get the content for the box and query to a dom element
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nsCOMPtr<nsIDOMElement> el = do_QueryInterface(firstFrame->GetContent());
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el.swap(*aFirstVisibleChild);
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return NS_OK;
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}
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NS_IMETHODIMP
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BoxObject::GetLastChild(nsIDOMElement * *aLastVisibleChild)
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{
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*aLastVisibleChild = nullptr;
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nsIFrame* frame = GetFrame(false);
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if (!frame) return NS_OK;
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return GetPreviousSibling(frame, nullptr, aLastVisibleChild);
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}
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NS_IMETHODIMP
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BoxObject::GetNextSibling(nsIDOMElement **aNextOrdinalSibling)
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{
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*aNextOrdinalSibling = nullptr;
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nsIFrame* frame = GetFrame(false);
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if (!frame) return NS_OK;
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nsIFrame* nextFrame = frame->GetNextSibling();
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if (!nextFrame) return NS_OK;
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// get the content for the box and query to a dom element
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nsCOMPtr<nsIDOMElement> el = do_QueryInterface(nextFrame->GetContent());
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el.swap(*aNextOrdinalSibling);
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return NS_OK;
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}
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NS_IMETHODIMP
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BoxObject::GetPreviousSibling(nsIDOMElement **aPreviousOrdinalSibling)
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{
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*aPreviousOrdinalSibling = nullptr;
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nsIFrame* frame = GetFrame(false);
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if (!frame) return NS_OK;
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nsIFrame* parentFrame = frame->GetParent();
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if (!parentFrame) return NS_OK;
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return GetPreviousSibling(parentFrame, frame, aPreviousOrdinalSibling);
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}
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nsresult
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BoxObject::GetPreviousSibling(nsIFrame* aParentFrame, nsIFrame* aFrame,
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nsIDOMElement** aResult)
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{
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*aResult = nullptr;
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nsIFrame* nextFrame = aParentFrame->GetFirstPrincipalChild();
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nsIFrame* prevFrame = nullptr;
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while (nextFrame) {
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if (nextFrame == aFrame)
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break;
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prevFrame = nextFrame;
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nextFrame = nextFrame->GetNextSibling();
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}
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if (!prevFrame) return NS_OK;
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// get the content for the box and query to a dom element
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nsCOMPtr<nsIDOMElement> el = do_QueryInterface(prevFrame->GetContent());
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el.swap(*aResult);
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return NS_OK;
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}
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nsIContent*
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BoxObject::GetParentObject() const
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{
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return mContent;
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}
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JSObject*
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BoxObject::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return BoxObjectBinding::Wrap(aCx, this, aGivenProto);
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}
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Element*
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BoxObject::GetElement() const
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{
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return mContent && mContent->IsElement() ? mContent->AsElement() : nullptr;
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}
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int32_t
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BoxObject::X()
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{
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int32_t ret = 0;
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GetX(&ret);
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return ret;
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}
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int32_t
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BoxObject::Y()
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{
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int32_t ret = 0;
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GetY(&ret);
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return ret;
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}
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int32_t
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BoxObject::GetScreenX(ErrorResult& aRv)
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{
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int32_t ret = 0;
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aRv = GetScreenX(&ret);
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return ret;
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}
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int32_t
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BoxObject::GetScreenY(ErrorResult& aRv)
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{
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int32_t ret = 0;
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aRv = GetScreenY(&ret);
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return ret;
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}
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int32_t
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BoxObject::Width()
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{
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int32_t ret = 0;
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GetWidth(&ret);
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return ret;
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}
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int32_t
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BoxObject::Height()
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{
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int32_t ret = 0;
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GetHeight(&ret);
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return ret;
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}
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already_AddRefed<nsISupports>
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BoxObject::GetPropertyAsSupports(const nsAString& propertyName)
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{
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nsCOMPtr<nsISupports> ret;
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GetPropertyAsSupports(PromiseFlatString(propertyName).get(), getter_AddRefs(ret));
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return ret.forget();
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}
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void
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BoxObject::SetPropertyAsSupports(const nsAString& propertyName, nsISupports* value)
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{
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SetPropertyAsSupports(PromiseFlatString(propertyName).get(), value);
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}
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void
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BoxObject::GetProperty(const nsAString& propertyName, nsString& aRetVal, ErrorResult& aRv)
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{
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nsCOMPtr<nsISupports> data(GetPropertyAsSupports(propertyName));
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if (!data) {
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return;
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}
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nsCOMPtr<nsISupportsString> supportsStr(do_QueryInterface(data));
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if (!supportsStr) {
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aRv.Throw(NS_ERROR_FAILURE);
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return;
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}
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supportsStr->GetData(aRetVal);
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}
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void
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BoxObject::SetProperty(const nsAString& propertyName, const nsAString& propertyValue)
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{
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SetProperty(PromiseFlatString(propertyName).get(), PromiseFlatString(propertyValue).get());
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}
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void
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BoxObject::RemoveProperty(const nsAString& propertyName)
|
|
{
|
|
RemoveProperty(PromiseFlatString(propertyName).get());
|
|
}
|
|
|
|
already_AddRefed<Element>
|
|
BoxObject::GetParentBox()
|
|
{
|
|
nsCOMPtr<nsIDOMElement> el;
|
|
GetParentBox(getter_AddRefs(el));
|
|
nsCOMPtr<Element> ret(do_QueryInterface(el));
|
|
return ret.forget();
|
|
}
|
|
|
|
already_AddRefed<Element>
|
|
BoxObject::GetFirstChild()
|
|
{
|
|
nsCOMPtr<nsIDOMElement> el;
|
|
GetFirstChild(getter_AddRefs(el));
|
|
nsCOMPtr<Element> ret(do_QueryInterface(el));
|
|
return ret.forget();
|
|
}
|
|
|
|
already_AddRefed<Element>
|
|
BoxObject::GetLastChild()
|
|
{
|
|
nsCOMPtr<nsIDOMElement> el;
|
|
GetLastChild(getter_AddRefs(el));
|
|
nsCOMPtr<Element> ret(do_QueryInterface(el));
|
|
return ret.forget();
|
|
}
|
|
|
|
already_AddRefed<Element>
|
|
BoxObject::GetNextSibling()
|
|
{
|
|
nsCOMPtr<nsIDOMElement> el;
|
|
GetNextSibling(getter_AddRefs(el));
|
|
nsCOMPtr<Element> ret(do_QueryInterface(el));
|
|
return ret.forget();
|
|
}
|
|
|
|
already_AddRefed<Element>
|
|
BoxObject::GetPreviousSibling()
|
|
{
|
|
nsCOMPtr<nsIDOMElement> el;
|
|
GetPreviousSibling(getter_AddRefs(el));
|
|
nsCOMPtr<Element> ret(do_QueryInterface(el));
|
|
return ret.forget();
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
// Creation Routine ///////////////////////////////////////////////////////////////////////
|
|
|
|
using namespace mozilla::dom;
|
|
|
|
nsresult
|
|
NS_NewBoxObject(nsIBoxObject** aResult)
|
|
{
|
|
NS_ADDREF(*aResult = new BoxObject());
|
|
return NS_OK;
|
|
}
|