--- a/ginebra/chromewidget.cpp Fri Jun 11 16:23:26 2010 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,767 +0,0 @@
-/*
-* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
-* All rights reserved.
-*
-* This program is free software: you can redistribute it and/or modify
-* it under the terms of the GNU Lesser General Public License as published by
-* the Free Software Foundation, version 2.1 of the License.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-* GNU Lesser General Public License for more details.
-*
-* You should have received a copy of the GNU Lesser General Public License
-* along with this program. If not,
-* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".
-*
-* Description:
-*
-*/
-
-#include <QtGui>
-#include <QNetworkReply>
-#include <QGraphicsScene>
-#include <QImage>
-#include <QTimeLine>
-#include <QPainterPath>
-#include "qwebpage.h"
-#include "qwebframe.h"
-#include "qwebview.h"
-#include "qwebelement.h"
-#include "chromewidget.h"
-#include "chromerenderer.h"
-#include "chromesnippet.h"
-#include "chromewidgetjsobject.h"
-#include "chromeview.h"
-#include "attentionanimator.h"
-#include "visibilityanimator.h"
-//NB: remove these
-#include "animations/fadeanimator.h"
-#include "animations/bounceanimator.h"
-#include "animations/flyoutanimator.h"
-
-#include "utilities.h"
-#include <assert.h>
-
-//Temporary include
-#include <QDebug>
-
-#ifdef G_TIMING
-#include "gtimer.h"
-#endif
-
-class UpdateBufferEvent : public QEvent {
- public:
- UpdateBufferEvent()
- : QEvent(customType()) {
- }
- static QEvent::Type customType() {
- static int type = QEvent::registerEventType();
- return (QEvent::Type) type;
- }
-};
-
-ChromeWidget::ChromeWidget(ChromeView *parentChromeView, QGraphicsItem *parent, const QString &jsName)
- :QObject(),
- m_chromePage(0),
- m_parentItem(parent),
- m_parentChromeView(parentChromeView),
- m_state(maximized),
- m_buffer(0),
- m_painter(0),
- m_dirtyTimer(0),
- m_jsObject(new ChromeWidgetJSObject(this, this, jsName))
-{
- // Connect signals generated by this object to signals on the javascript object.
- safe_connect(this, SIGNAL(loadStarted()), m_jsObject, SIGNAL(loadStarted()));
- safe_connect(this, SIGNAL(loadComplete()), m_jsObject, SIGNAL(loadComplete()));
- safe_connect(this, SIGNAL(dragStarted()), m_jsObject, SIGNAL(dragStarted()));
- safe_connect(this, SIGNAL(dragFinished()), m_jsObject, SIGNAL(dragFinished()));
- safe_connect(this, SIGNAL(viewPortResize(QRect)), m_jsObject, SIGNAL(viewPortResize(QRect)));
-
- //Allocate an instance of webkit to render the chrome
- ChromeRenderer *pageView = new ChromeRenderer(parentChromeView->parentWidget());
- safe_connect(pageView, SIGNAL(symbianCarriageReturn()), m_jsObject, SIGNAL(symbianCarriageReturn()));
- //QWebView *pageView = new QWebView(parentChromeView->parentWidget());
-
- pageView->show();
- m_chromePage = pageView->page();
-
- //Render to a transparent background (see WebKit bug 29414)
- QPalette palette = m_chromePage->palette();
- palette.setColor(QPalette::Base, Qt::transparent);
- m_chromePage->setPalette(palette);
-
- // No scrolling of the chrome
- m_chromePage->mainFrame()->setScrollBarPolicy(Qt::Vertical, Qt::ScrollBarAlwaysOff);
- m_chromePage->mainFrame()->setScrollBarPolicy(Qt::Horizontal, Qt::ScrollBarAlwaysOff);
-
- // Display the page view offscreen to ensure that it doesn't grab focus from chrome widget
- pageView->setGeometry(-1600, 0, 5, 5);
-
- // Connect QtWebPage signals
- safe_connect(chromePage(), SIGNAL(frameCreated(QWebFrame*)), this, SLOT(frameCreated(QWebFrame*)));
- safe_connect(chromePage(), SIGNAL(loadStarted()), this, SLOT(onLoadStarted()));
- safe_connect(chromePage(), SIGNAL(loadFinished(bool)), this, SLOT(loadFinished(bool)));
- safe_connect(chromePage(), SIGNAL(repaintRequested(QRect)), this, SLOT(repaintRequested(QRect)));
-
- //External links in chrome are delegated to a content view so we
- //propagate the QWebPage::linkClicked signal. The idea is that
- //chrome does not normally load external content into the chrome
- //itself (though chrome can still load content via XHR). Typically,
- //the active web view handles this signal. This allows chrome to contain
- //links to external content that get loaded into the web view. An
- //example would be a news feed that renders feed item titles in a chrome
- //pop-up, but which loads the feed content into the main web view.
-
- chromePage()->setLinkDelegationPolicy(QWebPage::DelegateExternalLinks);
- QObject::connect(chromePage(), SIGNAL(linkClicked(const QUrl&)), this, SIGNAL(delegateLink(const QUrl&)));
-
- installEventFilter(this);
-}
-
-ChromeWidget::~ChromeWidget(){
- delete m_painter;
- delete m_jsObject;
- delete m_buffer;
-}
-
-
-QObject *ChromeWidget::jsObject() {
- return static_cast<QObject *>(m_jsObject);
-}
-
-#ifdef Q_OS_SYMBIAN
-QPixmap * ChromeWidget::buffer()
-#else
-QImage * ChromeWidget::buffer()
-#endif
-{
- return m_buffer;
-}
-
-QPainter * ChromeWidget::painter(){
- return m_painter;
-}
-
-void ChromeWidget::resizeBuffer(){
- //qDebug() << "ChromeWidget::resizeBuffer: " << chromePage()->mainFrame()->contentsSize();
- if(m_painter) {
- m_painter->end();
- delete m_painter;
- m_painter = 0;
- }
- if(m_buffer)
- delete m_buffer;
-#ifdef Q_OS_SYMBIAN
- m_buffer = new QPixmap(chromePage()->mainFrame()->contentsSize());
-#else
- m_buffer = new QImage(chromePage()->mainFrame()->contentsSize(), QImage::Format_ARGB32_Premultiplied);
-#endif
- m_buffer->fill(Qt::transparent);
- m_painter = new QPainter(m_buffer);
-}
-
-void ChromeWidget::setChromeUrl(QString url)
-{
- //qDebug() << "ChromeWidget::setChromeUrl: " << url;
- if(chromePage() && chromePage()->mainFrame()){
-#ifdef G_TIMING
- GTimer * t = new GTimer();
- t->start("ChromeWidget::setChromeUrl()");
-#endif
- chromePage()->mainFrame()->load(QUrl(url));
-#ifdef G_TIMING
- t->stop();
- t->save();
- delete t;
-#endif
- }
-}
-
-void ChromeWidget::setGeometry(const QRect &rect)
-{
- m_chromePage->setViewportSize(QSize(rect.size().width(), 1000));
- resizeBuffer();
- updateChildGeometries();
-}
-
-
-void ChromeWidget::toggleVisibility(const QString & elementId)
-{
- ChromeSnippet * snippet = getSnippet(elementId);
- if(snippet)
- snippet->toggleVisibility();
-}
-
-void ChromeWidget::setLocation(const QString& id, int x, int y)
-{
- ChromeSnippet * snippet = getSnippet(id);
- if(snippet)
- snippet->setPos(x,y);
-}
-
-void ChromeWidget::setAnchor(const QString& id, const QString& anchor){
- ChromeSnippet * snippet = getSnippet(id);
- if(snippet)
- snippet->setAnchor(anchor);
-}
-
-void ChromeWidget::show(const QString & elementId, int x, int y)
-{
- ChromeSnippet * snippet = getSnippet(elementId);
-
- if(snippet){
- snippet->setPos(x,y);
- snippet->show(true);
- }
-}
-
-void ChromeWidget::show(const QString & elementId)
-{
- ChromeSnippet * snippet = getSnippet(elementId);
-
- if(snippet){
- //snippet->show(true);
- snippet->show(false);
- }
-}
-
-
-void ChromeWidget::hide(const QString & elementId)
-{
- ChromeSnippet * snippet = getSnippet(elementId);
- if(snippet)
- snippet->hide(true);
-}
-
-void ChromeWidget::toggleAttention(const QString & elementId){
- ChromeSnippet * snippet = getSnippet(elementId);
- if(snippet) {
- //qDebug() << "ChromeWidget::toggleAttention " << elementId;
- snippet->toggleAttention();
- }
-}
-
-void ChromeWidget::setVisibilityAnimator(const QString& elementId, const QString & animatorName){
- ChromeSnippet * snippet = getSnippet(elementId);
- if(snippet) {
- VisibilityAnimator * animator = VisibilityAnimator::create(animatorName, snippet);
- snippet->setVisibilityAnimator(animator); // NB: Move this to visibility animator implementation
- }
-}
-
-void ChromeWidget::setAttentionAnimator(const QString& elementId, const QString & animatorName){
-ChromeSnippet * snippet = getSnippet(elementId);
- if(snippet) {
- AttentionAnimator * animator = AttentionAnimator::create(animatorName, snippet);
- snippet->setAttentionAnimator(animator); // NB: Move this to visibility animator implementation
- }
-}
-
-//NB: Factor out snippet cleanup and use in destructor too
-
-void ChromeWidget::onLoadStarted() // slot
-{
- qDebug() << "ChromeWidget::onLoadStarted";
-#ifdef G_TIMING
- GTimer * t = new GTimer();
- t->start("ChromeWidget::loadStarted");
-#endif
- //First zero out all of the non-root snippets. These
- //will be deleted when the root snippets are deleted.
- QMapIterator<QString, ChromeSnippet*> i(m_snippetMap);
- while(i.hasNext()){
- i.next();
- if(i.value()->parentItem() != m_parentItem){
- m_snippetMap[i.key()] = 0;
- }
- }
- //Now delete the root snippets.
- foreach(ChromeSnippet *snippet, m_snippetMap){
- if(snippet){
- //Remove about-to-be-deleted snippet from parent scene
- m_parentChromeView->getScene()->removeItem(snippet);
- delete snippet;
- }
- }
- m_snippetMap.clear();
-// m_topSnippet = 0;
-// m_bottomSnippet = 0;
- //m_popSnippet = 0;
- //Does anybody care about this signal?
- emit loadStarted();
-#ifdef G_TIMING
- t->stop();
- t->save();
- delete t;
-#endif
-}
-
-
-QString ChromeWidget::getDisplayMode()
-{
- return m_parentChromeView->getDisplayMode();
-
-}
-
-
-void ChromeWidget::frameCreated(QWebFrame* frame){
- Q_UNUSED(frame)
- //qDebug() << "===>ChromeWidget::frameCreated";
-}
-
-void ChromeWidget::loadFinished(bool ok) // slot
-{
-#ifdef G_TIMING
- GTimer * t = new GTimer();
- t->start("ChromeWidget::loadFinished");
-#endif
- qDebug() << "ChromeWidget::loadFinished";
- if(!ok)
- {
- qDebug() << "ChromeWidget::loadFinished: error";
- return;
- }
- getInitialChrome();
- resizeBuffer();
- updateChildGeometries();
- emit loadComplete();
-#ifdef G_TIMING
- t->stop();
- t->save();
- delete t;
-#endif
-}
-
-void ChromeWidget::getInitialChrome(){
-
- QWebElement doc = chromePage()->mainFrame()->documentElement();
-#if QT_VERSION < 0x040600
- QList <QWebElement> initialSnippets = doc.findAll(".GinebraSnippet");
-#else
- QList <QWebElement> initialSnippets = doc.findAll(".GinebraSnippet").toList();
-#endif
- foreach(QWebElement element, initialSnippets) {
- ChromeSnippet* s = getSnippet(element.attribute("id"));
- if((element.attribute("data-GinebraVisible","false"))=="true"){
- s->show(false);
- }
- else {
- s->hide();
- }
- }
-}
-
-ChromeSnippet *ChromeWidget::getSnippet(const QString &docElementId, QGraphicsItem *parent) {
-
- ChromeSnippet *result = m_snippetMap.value(docElementId);
- if(!result){
- QWebElement doc = chromePage()->mainFrame()->documentElement();
- QWebElement element = doc.findFirst("#" + docElementId);
- QRect rect = getDocElementRect(docElementId);
- if(!rect.isNull()){
- QGraphicsItem * p = (parent)?parent:m_parentItem;
-
- // Create the snippet, pass the ChromeWidget's javascript object in so that it can
- // be used as the parent of the snippet's javascript object.
- result = new ChromeSnippet(p, this, jsObject(), docElementId);
-
- // Make sure snippets are shown above the content view.
- result->setZValue(3);
-
- //result->setAnchor("AnchorCenter");
- //qDebug() << "Creating snippet: " << docElementId << ":" << (int) result;
- // Set up connections to freeze the main content page while snippets are being dragged
- // to improve performance on complex pages.
- safe_connect(result->getJSObject(), SIGNAL(dragStarted()), this, SIGNAL(dragStarted()));
- safe_connect(result->getJSObject(), SIGNAL(dragFinished()), this, SIGNAL(dragFinished()));
- //Note that the following can be inefficient if several snippets are
- //made visible/invisible at once, which will result is successive
- //updates to the viewport. Optimize this to coalesce updates.
- safe_connect(result->getJSObject(), SIGNAL(onHide()), this, SLOT(updateViewPort()));
- safe_connect(result->getJSObject(), SIGNAL(onShow()), this, SLOT(updateViewPort()));
- //qDebug() << "Snippet child count: " << p->childItems().size() << " parent=" << ((QGraphicsWidget *)p)->objectName();
- //qDebug() << "ChromeWidget::getSnippet: " << docElementId << " " << rect;
-
- result->setOwnerArea(rect);
- //Snippet size is determined by owner area.
- result->resize(rect.size());
- //Set auto-layout attributes
- result->setAnchor(element.attribute("data-GinebraAnchor", "AnchorNone"));
- result->setHidesContent( element.attribute("data-GinebraHidesContent", "false") == "true" );
- result->setAnchorOffset( element.attribute("data-GinebraAnchorOffset", "0").toInt() ); //toInt() returns 0 for malformed string
- m_snippetMap[docElementId] = result;
- //NB: not very efficient
- QList <QVariant> chromeButtons = getChildIdsByClassName(docElementId, "GinebraButtonSnippet").toList();
- //qDebug() << "Chrome row size: " << chromeButtons.size();
- for(int i = 0; i < chromeButtons.size();i++) {
- qDebug() << "Chrome row button: " << chromeButtons[i].toString();
- getSnippet(chromeButtons[i].toString(),result);
- }
-
- }
- else{
- //qDebug() << "ChromeWidget::getSnippet: snippet not found, id=" << docElementId;
- return 0;
- }
- }else{
- //qDebug() << "Found existing snippet: " << docElementId;
- }
-
- return result;
-}
-
-/* Do a re-layout of the chrome. This gets snippet geometries, sets positions
- * and calculates the viewport size. This gets called when:
- * - New chrome is loaded
- * - The chrome is resized
- * This doesn't get called when chrome snippet visibility changes
- * or snippets get moved so that animations don't invoke multiple
- * relayouts. This means that visiblity changes need to explicitly
- * invoke a viewport size calculation if they want to resize the
- * viewport.
- */
-
-void ChromeWidget::updateChildGeometries()
-{
- QRect viewRect(QPoint(0,0), m_parentChromeView->geometry().size());
- //qDebug() << "ChromeWidget::updateChildGeometries: viewRect=" << viewRect;
- //m_chromePage->setViewportSize(viewRect.size());
-
- updateOwnerAreas();
-
- //NB: It would be more efficient to calculate the viewport as snippet geometry is set
- //though this ought to be done without duplicating code between here and updateViewport()
-
- foreach(ChromeSnippet *snippet, m_snippetMap) {
- qreal sHeight = snippet->ownerArea().height();
- if(snippet->anchor()=="AnchorTop"){
- snippet->setPos(0, snippet->anchorOffset());
- snippet->resize(viewRect.width(), sHeight);
- }
- else if(snippet->anchor()=="AnchorBottom"){
- //NB: Why do we need to subtract 2 from y coord here???
- //snippet->setPos(0, viewRect.height() - sHeight - snippet->anchorOffset() -2);
- snippet->setPos(0, viewRect.height() - sHeight - snippet->anchorOffset());
- snippet->resize(viewRect.width(), sHeight);
- }
- else if(snippet->anchor()=="AnchorCenter"){
- qreal sWidth = snippet->ownerArea().width();
- snippet->setPos((viewRect.width()-sWidth)/2,(viewRect.height()-sHeight)/2);
- snippet->resize(sWidth, sHeight);
- }
- else if(snippet->anchor()=="AnchorFullScreen"){
- snippet->setRect(0,0,viewRect.width(), viewRect.height());
- }
- snippet->updateChildGeometries();
-
- }
-
- updateViewPort();
-
- repaintRequested(viewRect); //Do intial repaint of the whole chrome after snippets are inited
-}
-
-//Updates the current viewport size to the area not covered by visible top and bottom chrome.
-
-void ChromeWidget::updateViewPort() {
- QRect viewPort(QPoint(0,0), m_parentChromeView->geometry().size());
-
- //NB: Note that this algorithm assumes that anchor offsets do NOT
- //shrink the viewport. I.e., if you have an offset snippet it is
- //assumed either that it hides content (HidesContent attribute is set)
- //or that it is being stacked on another anchored snippet. An offset snippet
- //that is not being stacked on another snippet and that does not have content hiding
- //set (HidesContent attribute) will typically show on top of the content window
- //with the content window reduced by the size of the snippet.
- int viewPortY = 0;
- foreach(ChromeSnippet *snippet, m_snippetMap) {
- if(!snippet->hidesContent()){
- if((snippet->anchor()=="AnchorTop") && snippet->isVisible() && !snippet->isHiding()){
- int snippetY = snippet->pos().y() + snippet->ownerArea().height();
- if (snippetY > viewPortY) {
- viewPortY = snippetY;
- }
- }
- else if((snippet->anchor()=="AnchorBottom") && snippet->isVisible() && !snippet->isHiding()){
- viewPort.adjust(0, 0, 0, (int)-snippet->ownerArea().height());
- }
- }
- }
- viewPort.adjust(0, viewPortY, 0, 0);
- emit viewPortResize(viewPort);
-}
-
-//Explicitly reset the viewport to a specified rectangle
-
-void ChromeWidget::setViewPort(QRect viewPort){
- emit viewPortResize(viewPort);
-}
-
-void ChromeWidget::networkRequestFinished(QNetworkReply *reply){ // slot
- if(reply->error() != QNetworkReply::NoError) {
- //qDebug() << "ChromeWidget::networkRequestFinished: " << reply->errorString();
- }
-}
-
-// Called when some part of the chrome page needs repainting. Uses a custom event to delay calling mainFrame->render()
-// since in some cases render() can crash -- apparently when it tries to paint an element that has
-// been deleted (by javascript etc.). Coalesces multiple calls to repaintRequested() into one call to
-// paintDirtyRegion().
-void ChromeWidget::repaintRequested(QRect dirtyRect){ // slot
- //qDebug() << "ChromeWidget::repaintRequested: " << dirtyRect;
-
-#ifdef G_TIMING
- GTimer * t = new GTimer();
- t->start("ChromeWidget::repaintRequested");
-#endif
-
-#ifdef Q_OS_SYMBIANXX // turn off the hack for now, remove eventually
- // Hack to get around painting issue in text fields. Backspacing doesn't appear to generate
- // repaint requests though the blinking caret does. Since the caret is very narrow this leaves
- // behind artifacts of the character that was deleted.
- dirtyRect.setRight(dirtyRect.right() + 20);
-
- //NB:Delayed repaints don't get invoked on NSP, at least on emulator
- //so paint immediately. Note that delayed repaints are a work-around
- //for JS/DOM issues in WebKit, so this needs to be revisited.
- m_dirtyRegion = dirtyRect;
- paintDirtyRegion();
-#else
- if(m_dirtyRegion.isEmpty()) {
- m_dirtyRegion += dirtyRect;
- QCoreApplication::postEvent(this, new UpdateBufferEvent);
- }
- else
- m_dirtyRegion += dirtyRect;
-#endif
-#ifdef G_TIMING
- t->stop();
- t->save();
- delete t;
-#endif
-}
-
-void ChromeWidget::paintDirtyRegion() {
- //qDebug() << "ChromeWidget::paintDirtyRegion" << m_dirtyRegion;
-
- if(m_dirtyRegion.isEmpty())
- return;
- if(m_buffer){
- m_painter->save(); //NB: would it be more efficient just to create a new painter on the stack?
- //Must set clip rect because frame may render background(?) outside dirty rect
- m_painter->setClipRegion(m_dirtyRegion);
- if(chromePage() && chromePage()->mainFrame())
- chromePage()->mainFrame()->render(m_painter, m_dirtyRegion);
- m_painter->restore();
- }
-
- foreach(ChromeSnippet *snippet, m_snippetMap) {
- if((snippet->parentItem() == m_parentItem) && snippet->isVisible() && m_dirtyRegion.intersects(snippet->ownerArea().toRect())) {
- // qDebug() << "Dirty rect intersects: " << snippet->docElementId() << ": " << snippet->ownerArea().toRect();
- snippet->update();
- }
- }
-
- // Clear dirty region.
- m_dirtyRegion = QRegion();
-}
-
-
-// Update owner areas of all snippets to allow for changes in chrome page geometry.
-void ChromeWidget::updateOwnerAreas() {
- foreach(ChromeSnippet *snippet, m_snippetMap) {
- snippet->setOwnerArea(getDocElementRect(snippet->docElementId()));
- }
-}
-
-//NB: The following methods should also be implementable, and possibly
-//more efficient, via the C++ DOM API
-
-void ChromeWidget::debugAlert(const QString &msg){
- chromePage()->mainFrame()->evaluateJavaScript("alert('" + msg + "')");
-}
-
-QVariant ChromeWidget::getDocElement(const QString &id) {
- return chromePage()->mainFrame()->evaluateJavaScript("document.getElementById('" + id + "')");
-}
-
-QVariant ChromeWidget::getDocIdsByName(const QString &name){
-
- QString js (
- "var elements = document.getElementsByName('" + name + "');"
- "var result = new Array();"
- "for(i = 0 ; i< elements.length; i++){"
- " result[i]=elements[i].id;"
- "}"
- "result;"
- );
- return chromePage()->mainFrame()->evaluateJavaScript(js);
-}
-
-QVariant ChromeWidget::getDocIdsByClassName(const QString &name){
-
- QString js (
- "var elements = document.getElementsByClassName('" + name + "');"
- "var result = new Array();"
- "for(i = 0 ; i< elements.length; i++){"
- " result[i]=elements[i].id;"
- "}"
- "result;"
- );
- return chromePage()->mainFrame()->evaluateJavaScript(js);
-}
-
-QVariant ChromeWidget::getChildIdsByClassName(const QString &parentId, const QString &name){
-
- QString js (
- "var elements = document.getElementsByClassName('" + name + "');"
- "var result = new Array();"
- "for(i = 0 ; i< elements.length; i++){"
- "if(elements[i].parentNode.id == '" + parentId +"'){"
- " result[i]=elements[i].id;"
- "}"
- "}"
- "result;"
- );
- return chromePage()->mainFrame()->evaluateJavaScript(js);
-
-}
-
-QSize ChromeWidget::getDocElementSize(const QString &id) {
- QSize result;
- QVariant jObj = getDocElement(id);
- if(jObj.isValid()) {
- QMap<QString, QVariant> jMap = jObj.toMap();
- //qDebug() << "Tagname: " << (jMap["tagName"].toString());
- result.setWidth(jMap["clientWidth"].toInt());
- result.setHeight(jMap["clientHeight"].toInt());
- }
- else {
- qDebug() << "ChromeWidget::getDocElementSize: element not found. " << id;
- }
- return result;
-}
-
-QString ChromeWidget::getDocElementAttribute(const QString &id, const QString &attribute) {
- QString result;
- QVariant jObj = getDocElement(id);
- if(jObj.isValid()) {
- QMap<QString, QVariant> jMap = jObj.toMap();
- //qDebug() << "Tagname: " << (jMap["tagName"].toString());
- result = jMap[attribute].toString();
- }
- else {
- qDebug() << "ChromeWidget::getDocElementSize: element not found. " << id;
- }
- return result;
-}
-
-QRect ChromeWidget::getDocElementRect(const QString &id) {
- QString js("var obj = document.getElementById('" + id + "');"
- "var width = obj.clientWidth;"
- "var height = obj.clientHeight;"
- "var curleft = curtop = 0;"
- "do {"
- " curleft += obj.offsetLeft;"
- " curtop += obj.offsetTop;"
- "} while (obj = obj.offsetParent);"
- "[curleft, curtop, width, height]");
- QVariant jObj = chromePage()->mainFrame()->evaluateJavaScript(js);
- if(jObj.isValid()) {
- return QRect(jObj.toList()[0].toInt(), jObj.toList()[1].toInt(), jObj.toList()[2].toInt(), jObj.toList()[3].toInt());
- }
- else {
- qDebug() << "ChromeWidget::getDocElementRect: element not found. " << id;
- return QRect();
- }
-}
-
-// Private. This class shadows the Qt class QComboBoxPrivateContainer to provide access its
-// the 'combo' pointer in eventFilter().
-class xQComboBoxPrivateContainer : public QFrame
-{
- public:
- int spacing() const;
- QTimer blockMouseReleaseTimer;
- QBasicTimer adjustSizeTimer;
- QPoint initialClickPosition;
- QComboBox *combo;
- QAbstractItemView *view;
- void *top;
- void *bottom;
-};
-
-bool ChromeWidget::eventFilter(QObject *object, QEvent *event)
-{
- // Shameless hack here. We need to intercept the creation of combobox drop-downs
- // in the chrome and move them into their correct positions since the system thinks they belong
- // off-screen over where the chrome page is actually rendered. Since drop-downs are grandchildren
- // of the ChromeRenderer we start by watching for child added events, when one is created we
- // watch it also for child added events too, thereby watching grandchild events. When we
- // see a QComboBoxPrivateContainer (the drop-down list) being moved we move it instead into
- // position just under the combobox.
-
- //qDebug() << "ChromeWidget::eventFilter: " << event->type();
-
- switch ((int)event->type()) {
- case QEvent::ChildAdded:
- case QEvent::ChildPolished:
- {
- QChildEvent *childEvt = static_cast<QChildEvent *>(event);
- //qDebug() << " watching " << childEvt->child();
- childEvt->child()->installEventFilter(this);
- break;
- }
- case QEvent::Move:
- {
- //QMoveEvent *evt = static_cast<QMoveEvent *>(event);
- //qDebug() << " oldpos " << evt->oldPos() << " pos " << evt->pos();
- if(object->inherits("QComboBoxPrivateContainer")) {
- xQComboBoxPrivateContainer *cbpc = static_cast<xQComboBoxPrivateContainer *>(object);
- QComboBox *combo = cbpc->combo;
- QRect comboRect = combo->geometry();
- QPoint comboPos = comboRect.topLeft();
- ChromeSnippet *snippet = getSnippet(comboPos);
- if(snippet) {
- QPoint relativePos = comboPos - snippet->ownerArea().topLeft().toPoint();
- static_cast<QWidget *>(object)->move(m_parentChromeView->mapToGlobal(QPoint(0,0))
- + snippet->rect().topLeft().toPoint()
- + relativePos
- + QPoint(0, comboRect.height()));
- }
- }
- break;
- }
- default:
- {
- if(event->type() == UpdateBufferEvent::customType()) {
- if(object == this) {
- //qDebug() << "ChromeWidget::eventFilter: UpdateBufferEvent " << (void*)object << event;
- paintDirtyRegion();
- }
- }
- break;
- }
- }
-
- return QObject::eventFilter(object, event);
-}
-
-ChromeSnippet *ChromeWidget::getSnippet(QPoint pos) const {
- foreach(ChromeSnippet *snippet, m_snippetMap) {
- if(snippet->ownerArea().contains(pos))
- return snippet;
- }
- return 0;
-}
-
-void ChromeWidget::dump() {
- qDebug() << "ChromeWidget::dump";
- foreach(ChromeSnippet *snippet, m_snippetMap) {
- snippet->dump();
- qDebug() << "------";
- }
-}