1/*
2 * Copyright (C) 2012 Intel Corporation. All rights reserved.
3 * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB.  If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 *
20 */
21
22#include "config.h"
23#include "WebColorChooserProxyQt.h"
24
25#include "qquickwebview_p.h"
26#include "qquickwebview_p_p.h"
27#include <QtQml/QQmlContext>
28#include <QtQml/QQmlEngine>
29
30using namespace WebCore;
31
32namespace WebKit {
33
34class ColorChooserContextObject : public QObject {
35    Q_OBJECT
36    Q_PROPERTY(QColor currentColor READ currentColor CONSTANT FINAL)
37    Q_PROPERTY(QRectF elementRect READ elementRect CONSTANT FINAL)
38
39public:
40    ColorChooserContextObject(const QColor& color, const QRectF& rect)
41        : m_currentColor(color)
42        , m_rect(rect)
43    {
44    }
45
46    QColor currentColor() const { return m_currentColor; }
47    QRectF elementRect() const { return m_rect; }
48
49    Q_INVOKABLE void accept(const QColor& color) { emit accepted(color); }
50    Q_INVOKABLE void reject() { emit rejected(); }
51
52Q_SIGNALS:
53    void accepted(const QColor&);
54    void rejected();
55
56private:
57    QColor m_currentColor;
58    QRectF m_rect;
59};
60
61WebColorChooserProxyQt::WebColorChooserProxyQt(WebColorChooserProxy::Client* client, QQuickWebView* webView, const Color& initialColor, const IntRect& elementRect)
62    : WebColorChooserProxy(client)
63    , m_webView(webView)
64{
65    const QRectF mappedRect= m_webView->mapRectFromWebContent(QRect(elementRect));
66    ColorChooserContextObject* contextObject = new ColorChooserContextObject(initialColor, mappedRect);
67    createItem(contextObject);
68}
69
70WebColorChooserProxyQt::~WebColorChooserProxyQt()
71{
72}
73
74void WebColorChooserProxyQt::createItem(QObject* contextObject)
75{
76    QQmlComponent* component = m_webView->experimental()->colorChooser();
77    if (!component) {
78        delete contextObject;
79        return;
80    }
81
82    createContext(component, contextObject);
83    QObject* object = component->beginCreate(m_context.get());
84    if (!object) {
85        m_context.clear();
86        return;
87    }
88
89    m_colorChooser = adoptPtr(qobject_cast<QQuickItem*>(object));
90    if (!m_colorChooser) {
91        m_context.clear();
92        return;
93    }
94
95    // Needs to be enqueue because it might trigger deletion.
96    connect(contextObject, SIGNAL(accepted(QColor)), SLOT(notifyColorSelected(QColor)), Qt::QueuedConnection);
97    connect(contextObject, SIGNAL(rejected()), SLOT(endChooser()), Qt::QueuedConnection);
98
99    QQuickWebViewPrivate::get(m_webView)->addAttachedPropertyTo(m_colorChooser.get());
100    m_colorChooser->setParentItem(m_webView);
101
102    component->completeCreate();
103}
104
105void WebColorChooserProxyQt::createContext(QQmlComponent* component, QObject* contextObject)
106{
107    QQmlContext* baseContext = component->creationContext();
108    if (!baseContext)
109        baseContext = QQmlEngine::contextForObject(m_webView);
110    m_context = adoptPtr(new QQmlContext(baseContext));
111
112    contextObject->setParent(m_context.get());
113    m_context->setContextProperty(QLatin1String("model"), contextObject);
114    m_context->setContextObject(contextObject);
115}
116
117void WebColorChooserProxyQt::setSelectedColor(const Color&)
118{
119    // This is suppose to be used to react to DOM changes. When
120    // a user script changes the input value, the method gives the
121    // option to update the color chooser UI if we were showing the
122    // current value. Since we don't, it is irrelevant right now.
123    // And yes, the name sounds misleading but comes from WebCore.
124}
125
126void WebColorChooserProxyQt::notifyColorSelected(const QColor& color)
127{
128    if (!m_client)
129        return;
130
131    // Alpha is always ignored by the color input
132    Color coreColor = makeRGB(color.red(), color.green(), color.blue());
133    m_client->didChooseColor(coreColor);
134
135    endChooser();
136}
137
138void WebColorChooserProxyQt::endChooser()
139{
140    m_colorChooser.clear();
141    m_context.clear();
142
143    if (!m_client)
144        return;
145
146    m_client->didEndColorChooser();
147}
148
149} // namespace WebKit
150
151#include "WebColorChooserProxyQt.moc"
152#include "moc_WebColorChooserProxyQt.cpp"
153