workspace/plasma/scriptengines/webkit/webapplet.cpp

   1 /*
   2 Copyright (c) 2007 Zack Rusin <zack@kde.org>
   3
   4 Permission is hereby granted, free of charge, to any person obtaining a copy
   5 of this software and associated documentation files (the "Software"), to deal
   6 in the Software without restriction, including without limitation the rights
   7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8 copies of the Software, and to permit persons to whom the Software is
   9 furnished to do so, subject to the following conditions:
  10
  11 The above copyright notice and this permission notice shall be included in
  12 all copies or substantial portions of the Software.
  13
  14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  20 THE SOFTWARE.
  21  */
  22 #include "webapplet.h"
  23
  24 #include "webpage.h"
  25
  26 #include <QPainter>
  27 #include <QWebView>
  28 #include <QWebFrame>
  29 #include <QWebPage>
  30 #include <QFile>
  31
  32 #include <Plasma/Applet>
  33 #include <Plasma/Package>
  34 #include <Plasma/WebView>
  35
  36 using namespace Plasma;
  37
  38 class WebApplet::Private
  39 {
  40 public:
  41     Private()
  42         : page(0)
  43     {
  44     }
  45
  46     void init(WebApplet *q)
  47     {
  48         loaded = false;
  49
  50         Plasma::Applet *applet = q->applet();
  51         applet->setAcceptsHoverEvents(true);
  52
  53         page = new Plasma::WebView(applet);
  54         page->setPage(new WebPage(page));
  55         QObject::connect(page, SIGNAL(loadFinished(bool)),
  56                          q, SLOT(loadFinished(bool)));
  57         QObject::connect(page->page(), SIGNAL(frameCreated(QWebFrame *)),
  58                          q, SLOT(connectFrame(QWebFrame *)));
  59         q->connectFrame(page->mainFrame());
  60
  61         page->mainFrame()->setScrollBarPolicy(Qt::Horizontal, Qt::ScrollBarAlwaysOff);
  62         page->mainFrame()->setScrollBarPolicy(Qt::Vertical, Qt::ScrollBarAlwaysOff);
  63
  64         QPalette palette = page->palette();
  65         palette.setBrush(QPalette::Background, QBrush(Qt::transparent));
  66         page->setPalette(palette);
  67     }
  68
  69     Plasma::WebView *page;
  70     bool loaded;
  71 };
  72
  73 WebApplet::WebApplet(QObject *parent, const QVariantList &args)
  74     : AppletScript(parent),
  75       d(new Private)
  76 {
  77     Q_UNUSED(args)
  78 }
  79
  80 WebApplet::~WebApplet()
  81 {
  82     delete d;
  83 }
  84
  85 bool WebApplet::init()
  86 {
  87     d->init(this);
  88
  89     QString webpage;
  90     webpage = package()->filePath("mainscript");
  91     //kDebug() << "webpage is at" << webpage;
  92     if (webpage.isEmpty()) {
  93         return false;
  94     }
  95     //kDebug() << package()->path() << package()->filePath("root");
  96     d->page->mainFrame()->setHtml(dataFor(webpage), QUrl(package()->filePath("root")));
  97     return true;
  98 }
  99
 100 void WebApplet::paintInterface(QPainter *painter,
 101                                const QStyleOptionGraphicsItem *option,
 102                                const QRect &contentsRect)
 103 {
 104     Q_UNUSED(painter)
 105     Q_UNUSED(option)
 106     Q_UNUSED(contentsRect)
 107 }
 108
 109 Plasma::WebView* WebApplet::view() const
 110 {
 111     return d->page;
 112 }
 113
 114 void WebApplet::loadFinished(bool success)
 115 {
 116     d->loaded = success;
 117 }
 118
 119 void WebApplet::connectFrame(QWebFrame *frame)
 120 {
 121     connect(frame, SIGNAL(javaScriptWindowObjectCleared()),
 122             this, SLOT(initJsObjects()));
 123 }
 124
 125 void WebApplet::initJsObjects()
 126 {
 127 }
 128
 129 QByteArray WebApplet::dataFor(const QString &str)
 130 {
 131     QFile f(str);
 132     f.open(QIODevice::ReadOnly);
 133     QByteArray data = f.readAll();
 134     f.close();
 135     return data;
 136 }
 137
 138 Plasma::WebView* WebApplet::page()
 139 {
 140     return d->page;
 141 }
 142
 143 bool WebApplet::loaded()
 144 {
 145     return d->loaded;
 146 }
 147
 148 #include "webapplet.moc"