/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Popups/1.2/internalPopupUtils.js is in qml-module-ubuntu-components 1.3.1918+16.04.20160404-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 | /*
* Copyright 2012 Canonical Ltd.
*
* 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 3.
*
* 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/>.
*/
.pragma library
.import Ubuntu.Components 1.2 as Toolkit
// Simple positioning on the screen, not relative to a caller Item.
function SimplePositioning(foreground, area, edgeMargins) {
// all coordinate computation are relative inside "area".
// return the x-coordinate to center item horizontally in area
this.horizontalCenter = function(item) {
return area.width/2 - item.width/2;
}
// return the y-coordinate to center item vertically in area
this.verticalCenter = function(item) {
return area.height/2 - item.height/2;
}
// check whether item fits inside area, obeying the given margins
this.checkVerticalPosition = function(item, y, marginBothSides, marginOneSide) {
if (y < marginBothSides) return false;
if (y + item.height > area.height - marginBothSides) return false;
if (marginBothSides >= marginOneSide) return true;
if (y > marginOneSide) return true;
if (y + item.height < area.height - marginOneSide) return true;
return false;
}
// check whether item fits inside area, obeying the given margins
this.checkHorizontalPosition = function(item, x, marginBothSides, marginOneSide) {
if (x < marginBothSides) return false;
if (x + item.width > area.width - marginBothSides) return false;
if (marginBothSides >= marginOneSide) return true;
if (x > marginOneSide) return true;
if (x + item.width < area.width - marginOneSide) return true;
return false;
}
// position foreground at the top of the screen, horizontally centered
this.autoSmallScreenPortrait = function() {
foreground.x = this.horizontalCenter(foreground);
foreground.y = 0;
}
// position foreground at the left side of the screen, vertically centered
this.autoSmallScreenLandscape = function() {
foreground.x = 0;
foreground.y = this.verticalCenter(foreground);
}
// position foreground centered on a large screen
this.autoLargeScreen = function() {
foreground.x = this.horizontalCenter(foreground);
foreground.y = this.verticalCenter(foreground);
}
// automatically position foreground on the screen
this.auto = function(margin) {
if (foreground.width >= area.width - 2*edgeMargins) {
// the popover uses (almost) the full width of the screen
this.autoSmallScreenPortrait();
return;
}
if (foreground.height >= area.height - 2*edgeMargins) {
// the popover uses (almost) the full height of the screen
this.autoSmallScreenLandscape();
return;
}
this.autoLargeScreen();
}
}
// caller is optional.
// if caller is given, pointer and callerMargins must be specified, otherwise they are ignored.
function CallerPositioning(foreground, pointer, area, caller, pointerTarget, edgeMargins, callerMargins) {
var simplePos = new SimplePositioning(foreground, area, edgeMargins);
// -1 values are not relevant.
// return y-coordinate to position item a distance of margin above caller
this.above = function(item, margin, anchorItem) {
return area.mapFromItem(anchorItem, -1, 0).y - (item ? item.height : 0) - margin;
}
// return y-coordinate to position item a distance of margin below caller
this.below = function(item, margin, anchorItem) {
return area.mapFromItem(anchorItem, -1, anchorItem.height).y + margin;
}
// return x-coordinate to position item a distance of margin left of caller
this.left = function(item, margin, anchorItem) {
return area.mapFromItem(anchorItem, 0, -1).x - (item ? item.width : 0) - margin;
}
// return x-coodinate to position item a distance of margin right of caller
this.right = function(item, margin, anchorItem) {
return area.mapFromItem(anchorItem, anchorItem.width, -1).x + margin;
}
// return x-coordinate to align center of item horizontally with center of caller
this.horizontalAlign = function(item, anchorItem) {
var x = area.mapFromItem(anchorItem, anchorItem.width/2, -1).x - item.width/2;
return Toolkit.MathUtils.clamp(x, edgeMargins, area.width - item.width - edgeMargins);
}
// return y-coordinate to align center of item vertically with center of caller
this.verticalAlign = function(item, anchorItem) {
var y = area.mapFromItem(anchorItem, -1, anchorItem.height/2).y - item.height/2;
return Toolkit.MathUtils.clamp(y, edgeMargins, area.height - item.height - edgeMargins);
}
this.closestToHorizontalCenter = function(anchorItem, margin) {
var center = area.mapFromItem(anchorItem, anchorItem.width/2, -1).x;
return Toolkit.MathUtils.clamp(center, edgeMargins + margin, area.width - (edgeMargins + margin));
}
this.closestToVerticalCenter = function(anchorItem, margin) {
var center = area.mapFromItem(anchorItem, -1, anchorItem.height/2).y;
return Toolkit.MathUtils.clamp(center, edgeMargins + margin, area.height - (edgeMargins + margin));
}
// position foreground and pointer automatically on a small screen in portrait mode
this.autoSmallScreenPortrait = function() {
if (!caller) {
simplePos.autoSmallScreenPortrait();
pointer.direction = "none";
return;
}
foreground.x = simplePos.horizontalCenter(foreground);
var ycoord = this.above(foreground, callerMargins + pointer.size, caller);
if (simplePos.checkVerticalPosition(foreground, ycoord, 0, area.height/4)) {
foreground.y = ycoord;
pointer.direction = "down";
pointer.y = this.above(null, callerMargins, caller);
pointer.x = this.closestToHorizontalCenter(pointerTarget, pointer.horizontalMargin);
return;
}
ycoord = this.below(foreground, callerMargins + pointer.size, caller);
if (simplePos.checkVerticalPosition(foreground, ycoord, 0, area.height/4)) {
foreground.y = ycoord;
pointer.direction = "up";
pointer.y = this.below(null, callerMargins, caller);
pointer.x = this.closestToHorizontalCenter(pointerTarget, pointer.horizontalMargin);
return;
}
simplePos.autoSmallScreenPortrait();
pointer.direction = "none";
}
// position foreground and pointer automatically on a small screen in landscape mode.
this.autoSmallScreenLandscape = function() {
if (!caller) {
simplePos.autoSmallScreenLandscape();
pointer.direction = "none";
return;
}
foreground.y = simplePos.verticalCenter(foreground);
var xcoord = this.left(foreground, callerMargins + pointer.size, caller);
if (simplePos.checkHorizontalPosition(foreground, xcoord, 0, area.width/4)) {
foreground.x = xcoord;
pointer.direction = "right";
pointer.x = this.left(null, callerMargins, caller);
pointer.y = this.closestToVerticalCenter(pointerTarget, pointer.verticalMargin);
return;
}
xcoord = this.right(foreground, callerMargins + pointer.size, caller);
if (simplePos.checkHorizontalPosition(foreground, xcoord, 0, area.width/4)) {
foreground.x = xcoord;
pointer.direction = "left";
pointer.x = this.right(null, callerMargins, caller);
pointer.y = this.closestToVerticalCenter(pointerTarget, pointer.verticalMargin);
return;
}
// position at the left of the screen
simplePos.autoSmallScreenLandscape();
pointer.direction = "none";
}
// position foreground and pointer above caller; the pointer's y will be aligned
// to the caller, and x to the pointerTarget
this.positionAbove = function() {
var coord = this.above(foreground, callerMargins + pointer.size, caller);
if (simplePos.checkVerticalPosition(foreground, coord, edgeMargins, 0)) {
foreground.y = coord;
foreground.x = this.horizontalAlign(foreground, caller);
pointer.direction = "down";
pointer.y = this.above(null, callerMargins, caller);
pointer.x = this.closestToHorizontalCenter(pointerTarget, pointer.horizontalMargin);
return true;
}
return false;
}
// position foreground and pointer below caller; the pointer's y will be aligned
// to the caller, and x to the pointerTarget
this.positionBelow = function() {
var coord = this.below(foreground, callerMargins + pointer.size, caller);
if (simplePos.checkVerticalPosition(foreground, coord, edgeMargins, 0)) {
foreground.y = coord;
foreground.x = this.horizontalAlign(foreground, caller);
pointer.direction = "up";
pointer.y = this.below(null, callerMargins, caller);
pointer.x = this.closestToHorizontalCenter(pointerTarget, pointer.horizontalMargin);
return true;
}
return false;
}
// position foreground and pointer in front of caller; the pointer's x will be aligned
// to the caller, and y to the pointerTarget
this.positionInFront = function() {
var coord = this.left(foreground, callerMargins + pointer.size, caller);
if (simplePos.checkHorizontalPosition(foreground, coord, edgeMargins, 0)) {
foreground.x = coord;
foreground.y = this.verticalAlign(foreground, caller);
pointer.direction = "right";
pointer.x = this.left(null, callerMargins, caller);
pointer.y = this.closestToVerticalCenter(pointerTarget, pointer.verticalMargin);
return true;
}
return false;
}
// position foreground and pointer behind caller; the pointer's x will be aligned
// to the caller, and y to the pointerTarget
this.positionBehind = function() {
var coord = this.right(foreground, callerMargins + pointer.size, caller)
if (simplePos.checkHorizontalPosition(foreground, coord, edgeMargins, 0)) {
foreground.x = coord;
foreground.y = this.verticalAlign(foreground, caller);
pointer.direction = "left";
pointer.x = this.right(null, callerMargins, caller);
pointer.y = this.closestToVerticalCenter(pointerTarget, pointer.verticalMargin);
return true;
}
return false;
}
// position foreground and pointer automatically on a large screen.
this.autoLargeScreen = function() {
if (!caller) {
simplePos.autoLargeScreen();
pointer.direction = "none";
return;
}
// position with the following priorities: above, below, right, left.
var order = ["positionAbove", "positionBelow", "positionBehind", "positionInFront"];
for (var i = 0; i < order.length; i++) {
if (this[order[i]]())
return;
}
// not enough space on any of the sides to fit within the margins.
simplePos.autoLargeScreen();
pointer.direction = "none";
}
this.auto = function() {
// area may be null some times...
if (!area)
return;
if (!pointerTarget)
pointerTarget = caller;
if (foreground.width >= area.width - 2*edgeMargins) {
// the popover uses (almost) the full width of the screen
this.autoSmallScreenPortrait();
return;
}
if (foreground.height >= area.height - 2*edgeMargins) {
// the popover uses (almost) the full height of the screen
this.autoSmallScreenLandscape();
return;
}
this.autoLargeScreen();
}
}
|