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Diffstat (limited to 'demos/declarative/webbrowser/content/FlickableWebView.qml')
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1 files changed, 195 insertions, 0 deletions
diff --git a/demos/declarative/webbrowser/content/FlickableWebView.qml b/demos/declarative/webbrowser/content/FlickableWebView.qml new file mode 100644 index 0000000000..947b8436fa --- /dev/null +++ b/demos/declarative/webbrowser/content/FlickableWebView.qml @@ -0,0 +1,195 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtDeclarative module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 1.0 +import QtWebKit 1.0 + +Flickable { + property alias title: webView.title + property alias icon: webView.icon + property alias progress: webView.progress + property alias url: webView.url + property alias back: webView.back + property alias stop: webView.stop + property alias reload: webView.reload + property alias forward: webView.forward + + id: flickable + width: parent.width + contentWidth: Math.max(parent.width,webView.width) + contentHeight: Math.max(parent.height,webView.height) + anchors.top: headerSpace.bottom + anchors.bottom: parent.top + anchors.left: parent.left + anchors.right: parent.right + pressDelay: 200 + + onWidthChanged : { + // Expand (but not above 1:1) if otherwise would be smaller that available width. + if (width > webView.width*webView.contentsScale && webView.contentsScale < 1.0) + webView.contentsScale = width / webView.width * webView.contentsScale; + } + + WebView { + id: webView + transformOrigin: Item.TopLeft + + function fixUrl(url) + { + if (url == "") return url + if (url[0] == "/") return "file://"+url + if (url.indexOf(":")<0) { + if (url.indexOf(".")<0 || url.indexOf(" ")>=0) { + // Fall back to a search engine; hard-code Wikipedia + return "http://en.wikipedia.org/w/index.php?search="+url + } else { + return "http://"+url + } + } + return url + } + + url: fixUrl(webBrowser.urlString) + smooth: false // We don't want smooth scaling, since we only scale during (fast) transitions + focus: true + + onAlert: console.log(message) + + function doZoom(zoom,centerX,centerY) + { + if (centerX) { + var sc = zoom*contentsScale; + scaleAnim.to = sc; + flickVX.from = flickable.contentX + flickVX.to = Math.max(0,Math.min(centerX-flickable.width/2,webView.width*sc-flickable.width)) + finalX.value = flickVX.to + flickVY.from = flickable.contentY + flickVY.to = Math.max(0,Math.min(centerY-flickable.height/2,webView.height*sc-flickable.height)) + finalY.value = flickVY.to + quickZoom.start() + } + } + + Keys.onLeftPressed: webView.contentsScale -= 0.1 + Keys.onRightPressed: webView.contentsScale += 0.1 + + preferredWidth: flickable.width + preferredHeight: flickable.height + contentsScale: 1 + onContentsSizeChanged: { + // zoom out + contentsScale = Math.min(1,flickable.width / contentsSize.width) + } + onUrlChanged: { + // got to topleft + flickable.contentX = 0 + flickable.contentY = 0 + if (url != null) { header.editUrl = url.toString(); } + } + onDoubleClick: { + if (!heuristicZoom(clickX,clickY,2.5)) { + var zf = flickable.width / contentsSize.width + if (zf >= contentsScale) + zf = 2.0*contentsScale // zoom in (else zooming out) + doZoom(zf,clickX*zf,clickY*zf) + } + } + + SequentialAnimation { + id: quickZoom + + PropertyAction { + target: webView + property: "renderingEnabled" + value: false + } + ParallelAnimation { + NumberAnimation { + id: scaleAnim + target: webView + property: "contentsScale" + // the to property is set before calling + easing.type: Easing.Linear + duration: 200 + } + NumberAnimation { + id: flickVX + target: flickable + property: "contentX" + easing.type: Easing.Linear + duration: 200 + from: 0 // set before calling + to: 0 // set before calling + } + NumberAnimation { + id: flickVY + target: flickable + property: "contentY" + easing.type: Easing.Linear + duration: 200 + from: 0 // set before calling + to: 0 // set before calling + } + } + // Have to set the contentXY, since the above 2 + // size changes may have started a correction if + // contentsScale < 1.0. + PropertyAction { + id: finalX + target: flickable + property: "contentX" + value: 0 // set before calling + } + PropertyAction { + id: finalY + target: flickable + property: "contentY" + value: 0 // set before calling + } + PropertyAction { + target: webView + property: "renderingEnabled" + value: true + } + } + onZoomTo: doZoom(zoom,centerX,centerY) + } +} |