1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
import Qt 4.6
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 reload: webView.reload
property alias forward: webView.forward
id: flickable
width: parent.width
contentWidth: Math.max(parent.width,webView.width*webView.scale)
contentHeight: Math.max(parent.height,webView.height*webView.scale)
anchors.top: headerSpace.bottom
anchors.bottom: footer.top
anchors.left: parent.left
anchors.right: parent.right
pressDelay: 200
WebView {
id: webView
pixelCacheSize: 4000000
Script {
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
smoothCache: true // We do want smooth rendering
fillColor: "white"
focus: true
zoomFactor: 4
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
finalZoom.value = zoom
quickZoom.start()
}
}
Keys.onLeftPressed: webView.contentsScale -= 0.1
Keys.onRightPressed: webView.contentsScale += 0.1
preferredWidth: flickable.width*zoomFactor
preferredHeight: flickable.height*zoomFactor
contentsScale: 1/zoomFactor
onContentsSizeChanged: {
// zoom out
contentsScale = Math.min(0.25,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/zoomFactor // 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: "scale"
from: 1
to: 0 // set before calling
easing.type: "Linear"
duration: 200
}
NumberAnimation {
id: flickVX
target: flickable
property: "contentX"
easing.type: "Linear"
duration: 200
from: 0 // set before calling
to: 0 // set before calling
}
NumberAnimation {
id: flickVY
target: flickable
property: "contentY"
easing.type: "Linear"
duration: 200
from: 0 // set before calling
to: 0 // set before calling
}
}
PropertyAction {
id: finalZoom
target: webView
property: "contentsScale"
}
PropertyAction {
target: webView
property: "scale"
value: 1.0
}
// 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)
}
}
|
