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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601
|
/**
* This file is part of the DOM implementation for KDE.
*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "html/html_imageimpl.h"
#include "html/html_formimpl.h"
#include "html/html_documentimpl.h"
#include "khtmlview.h"
#include "khtml_part.h"
#include <kstringhandler.h>
#include "rendering/render_image.h"
#include "rendering/render_flow.h"
#include "css/cssstyleselector.h"
#include "css/cssproperties.h"
#include "css/cssvalues.h"
#include "xml/dom2_eventsimpl.h"
#include <QCharRef>
#include <QPoint>
#include <QStack>
#include <QRegion>
#include <QImage>
using namespace DOM;
using namespace khtml;
// -------------------------------------------------------------------------
HTMLImageElementImpl::HTMLImageElementImpl(DocumentImpl *doc, HTMLFormElementImpl *f)
: HTMLElementImpl(doc), ismap(false), loadEventSent(true), unsafe(false), m_image(nullptr), m_form(f)
{
if (m_form) {
m_form->registerImgElement(this);
}
}
HTMLImageElementImpl::~HTMLImageElementImpl()
{
if (document()) {
document()->removeImage(this);
}
if (m_image) {
m_image->deref(this);
}
if (m_form) {
m_form->removeImgElement(this);
}
}
NodeImpl::Id HTMLImageElementImpl::id() const
{
return ID_IMG;
}
void HTMLImageElementImpl::parseAttribute(AttributeImpl *attr)
{
switch (attr->id()) {
case ATTR_ALT:
setChanged();
break;
case ATTR_SRC: {
setChanged();
//Start loading the image already, to generate events
const DOMString imgSrcUrl = attr->value().trimSpaces();
if (!imgSrcUrl.isEmpty()) { //### why do we not hide or something when setting this?
CachedImage *newImage = document()->docLoader()->requestImage(imgSrcUrl);
if (newImage && newImage != m_image) {
CachedImage *oldImage = m_image;
loadEventSent = false;
m_image = newImage;
m_image->ref(this);
if (oldImage) {
oldImage->deref(this);
}
}
if (m_image) {
const QUrl fullURL = QUrl(m_image->url().string());
if (document()->origin()->taintsCanvas(fullURL)) {
unsafe = true;
}
}
}
}
break;
case ATTR_WIDTH:
if (!attr->value().isEmpty()) {
addCSSLength(CSS_PROP_WIDTH, attr->value());
} else {
removeCSSProperty(CSS_PROP_WIDTH);
}
break;
case ATTR_HEIGHT:
if (!attr->value().isEmpty()) {
addCSSLength(CSS_PROP_HEIGHT, attr->value());
} else {
removeCSSProperty(CSS_PROP_HEIGHT);
}
break;
case ATTR_BORDER:
// border="noborder" -> border="0"
if (attr->value().toInt()) {
addCSSLength(CSS_PROP_BORDER_WIDTH, attr->value());
addCSSProperty(CSS_PROP_BORDER_TOP_STYLE, CSS_VAL_SOLID);
addCSSProperty(CSS_PROP_BORDER_RIGHT_STYLE, CSS_VAL_SOLID);
addCSSProperty(CSS_PROP_BORDER_BOTTOM_STYLE, CSS_VAL_SOLID);
addCSSProperty(CSS_PROP_BORDER_LEFT_STYLE, CSS_VAL_SOLID);
} else {
removeCSSProperty(CSS_PROP_BORDER_WIDTH);
removeCSSProperty(CSS_PROP_BORDER_TOP_STYLE);
removeCSSProperty(CSS_PROP_BORDER_RIGHT_STYLE);
removeCSSProperty(CSS_PROP_BORDER_BOTTOM_STYLE);
removeCSSProperty(CSS_PROP_BORDER_LEFT_STYLE);
}
break;
case ATTR_VSPACE:
addCSSLength(CSS_PROP_MARGIN_TOP, attr->value());
addCSSLength(CSS_PROP_MARGIN_BOTTOM, attr->value());
break;
case ATTR_HSPACE:
addCSSLength(CSS_PROP_MARGIN_LEFT, attr->value());
addCSSLength(CSS_PROP_MARGIN_RIGHT, attr->value());
break;
case ATTR_ALIGN:
addHTMLAlignment(attr->value());
break;
case ATTR_VALIGN:
addCSSProperty(CSS_PROP_VERTICAL_ALIGN, attr->value().lower());
break;
case ATTR_USEMAP:
if (attr->value()[0] == '#') {
usemap = attr->value().lower();
} else {
QString url = document()->completeURL(attr->value().trimSpaces().string());
// ### we remove the part before the anchor and hope
// the map is on the same html page....
usemap = url;
}
m_hasAnchor = attr->val() != nullptr;
break;
case ATTR_ISMAP:
ismap = true;
break;
case ATTR_ONABORT: // ### add support for this
setHTMLEventListener(EventImpl::ABORT_EVENT,
document()->createHTMLEventListener(attr->value().string(), "onabort", this));
break;
case ATTR_ONERROR:
setHTMLEventListener(EventImpl::ERROR_EVENT,
document()->createHTMLEventListener(attr->value().string(), "onerror", this));
break;
case ATTR_ONLOAD:
setHTMLEventListener(EventImpl::LOAD_EVENT,
document()->createHTMLEventListener(attr->value().string(), "onload", this));
break;
case ATTR_NOSAVE:
break;
case ATTR_NAME:
if (inDocument() && m_name != attr->value()) {
document()->underDocNamedCache().remove(m_name, this);
document()->underDocNamedCache().add(attr->value(), this);
}
m_name = attr->value();
//fallthrough
default:
HTMLElementImpl::parseAttribute(attr);
}
}
void HTMLImageElementImpl::notifyFinished(CachedObject *finishedObj)
{
if (m_image == finishedObj) {
document()->dispatchImageLoadEventSoon(this);
}
}
void HTMLImageElementImpl::dispatchLoadEvent()
{
if (!loadEventSent) {
loadEventSent = true;
if (m_image->isErrorImage()) {
dispatchHTMLEvent(EventImpl::ERROR_EVENT, false, false);
} else {
dispatchHTMLEvent(EventImpl::LOAD_EVENT, false, false);
}
}
}
DOMString HTMLImageElementImpl::altText() const
{
// lets figure out the alt text.. magic stuff
// http://www.w3.org/TR/1998/REC-html40-19980424/appendix/notes.html#altgen
// also heavily discussed by Hixie on bugzilla
DOMString alt(getAttribute(ATTR_ALT));
// fall back to title attribute
if (alt.isNull()) {
alt = getAttribute(ATTR_TITLE);
}
#if 0
if (alt.isNull()) {
QString p = QUrl(document()->completeURL(getAttribute(ATTR_SRC).string())).toDisplayString();
int pos;
if ((pos = p.lastIndexOf('.')) > 0) {
p.truncate(pos);
}
alt = DOMString(KStringHandler::csqueeze(p));
}
#endif
return alt;
}
void HTMLImageElementImpl::attach()
{
assert(!attached());
assert(!m_render);
assert(parentNode());
RenderStyle *_style = document()->styleSelector()->styleForElement(this);
_style->ref();
if (parentNode()->renderer() && parentNode()->renderer()->childAllowed() &&
_style->display() != NONE) {
m_render = new(document()->renderArena()) RenderImage(this);
m_render->setStyle(_style);
parentNode()->renderer()->addChild(m_render, nextRenderer());
}
_style->deref();
NodeBaseImpl::attach();
if (m_render) {
m_render->updateFromElement();
}
}
void HTMLImageElementImpl::removedFromDocument()
{
document()->underDocNamedCache().remove(m_name, this);
HTMLElementImpl::removedFromDocument();
}
void HTMLImageElementImpl::insertedIntoDocument()
{
document()->underDocNamedCache().add(m_name, this);
HTMLElementImpl::insertedIntoDocument();
}
void HTMLImageElementImpl::removeId(const DOMString &id)
{
document()->underDocNamedCache().remove(id, this);
HTMLElementImpl::removeId(id);
}
void HTMLImageElementImpl::addId(const DOMString &id)
{
document()->underDocNamedCache().add(id, this);
HTMLElementImpl::addId(id);
}
long HTMLImageElementImpl::width() const
{
if (!m_render) {
DOMString widthAttr = getAttribute(ATTR_WIDTH);
if (!widthAttr.isNull()) {
return widthAttr.toInt();
} else if (m_image && m_image->pixmap_size().isValid()) {
return m_image->pixmap_size().width();
} else {
return 0;
}
}
document()->updateLayout();
return m_render ? m_render->contentWidth() :
getAttribute(ATTR_WIDTH).toInt();
}
long HTMLImageElementImpl::height() const
{
if (!m_render) {
DOMString heightAttr = getAttribute(ATTR_HEIGHT);
if (!heightAttr.isNull()) {
return heightAttr.toInt();
} else if (m_image && m_image->pixmap_size().isValid()) {
return m_image->pixmap_size().height();
} else {
return 0;
}
}
document()->updateLayout();
return m_render ? m_render->contentHeight() :
getAttribute(ATTR_HEIGHT).toInt();
}
void HTMLImageElementImpl::setWidth(long width)
{
setAttribute(ATTR_WIDTH, QString::number(width));
}
void HTMLImageElementImpl::setHeight(long height)
{
setAttribute(ATTR_HEIGHT, QString::number(height));
}
QImage HTMLImageElementImpl::currentImage() const
{
if (!complete() || !m_image || !m_image->image()) {
return QImage();
}
QImage *im = m_image->image()->qimage();
if (im) {
return *im;
} else {
return QImage();
}
}
long HTMLImageElementImpl::x() const
{
if (renderer()) {
int x = 0;
int y = 0;
renderer()->absolutePosition(x, y);
return x;
}
return 0;
}
long HTMLImageElementImpl::y() const
{
if (renderer()) {
int x = 0;
int y = 0;
renderer()->absolutePosition(x, y);
return y;
}
return 0;
}
QPixmap HTMLImageElementImpl::currentPixmap() const
{
if (m_image) {
return m_image->pixmap();
}
return QPixmap();
}
bool HTMLImageElementImpl::complete() const
{
return m_image && m_image->isComplete();
}
// -------------------------------------------------------------------------
HTMLMapElementImpl::HTMLMapElementImpl(DocumentImpl *doc)
: HTMLElementImpl(doc)
{
}
HTMLMapElementImpl::~HTMLMapElementImpl()
{
if (document() && document()->isHTMLDocument()) {
static_cast<HTMLDocumentImpl *>(document())->mapMap.remove(name);
}
}
NodeImpl::Id HTMLMapElementImpl::id() const
{
return ID_MAP;
}
bool
HTMLMapElementImpl::mapMouseEvent(int x_, int y_, int width_, int height_,
RenderObject::NodeInfo &info)
{
//cout << "map:mapMouseEvent " << endl;
//cout << x_ << " " << y_ <<" "<< width_ <<" "<< height_ << endl;
QStack<NodeImpl *> nodeStack;
NodeImpl *current = firstChild();
while (1) {
if (!current) {
if (nodeStack.isEmpty()) {
break;
}
current = nodeStack.pop();
current = current->nextSibling();
continue;
}
if (current->id() == ID_AREA) {
//cout << "area found " << endl;
HTMLAreaElementImpl *area = static_cast<HTMLAreaElementImpl *>(current);
if (area->mapMouseEvent(x_, y_, width_, height_, info)) {
return true;
}
}
NodeImpl *child = current->firstChild();
if (child) {
nodeStack.push(current);
current = child;
} else {
current = current->nextSibling();
}
}
return false;
}
void HTMLMapElementImpl::parseAttribute(AttributeImpl *attr)
{
switch (attr->id()) {
case ATTR_ID:
if (document()->htmlMode() != DocumentImpl::XHtml) {
HTMLElementImpl::parseAttribute(attr);
break;
} else {
// add name with full url:
QString url = document()->completeURL(attr->value().trimSpaces().string());
if (document()->isHTMLDocument()) {
static_cast<HTMLDocumentImpl *>(document())->mapMap[url] = this;
}
}
// fall through
case ATTR_NAME: {
DOMString s = attr->value();
if (*s.unicode() == '#') {
name = QString(s.unicode() + 1, s.length() - 1).toLower();
} else {
name = s.string().toLower();
}
// ### make this work for XML documents, e.g. in case of <html:map...>
if (document()->isHTMLDocument()) {
static_cast<HTMLDocumentImpl *>(document())->mapMap[name] = this;
}
//fallthrough
}
default:
HTMLElementImpl::parseAttribute(attr);
}
}
HTMLCollectionImpl *HTMLMapElementImpl::areas()
{
return new HTMLCollectionImpl(this, HTMLCollectionImpl::MAP_AREAS);
}
// -------------------------------------------------------------------------
HTMLAreaElementImpl::HTMLAreaElementImpl(DocumentImpl *doc)
: HTMLAnchorElementImpl(doc)
{
m_coords = nullptr;
m_coordsLen = 0;
nohref = false;
shape = Unknown;
lasth = lastw = -1;
}
HTMLAreaElementImpl::~HTMLAreaElementImpl()
{
delete [] m_coords;
}
NodeImpl::Id HTMLAreaElementImpl::id() const
{
return ID_AREA;
}
void HTMLAreaElementImpl::parseAttribute(AttributeImpl *attr)
{
switch (attr->id()) {
case ATTR_SHAPE:
if (strcasecmp(attr->value(), "default") == 0) {
shape = Default;
} else if (strcasecmp(attr->value(), "circle") == 0) {
shape = Circle;
} else if (strcasecmp(attr->value(), "poly") == 0 || strcasecmp(attr->value(), "polygon") == 0) {
shape = Poly;
} else if (strcasecmp(attr->value(), "rect") == 0) {
shape = Rect;
}
break;
case ATTR_COORDS:
delete [] m_coords;
m_coords = attr->val()->toCoordsArray(m_coordsLen);
break;
case ATTR_NOHREF:
nohref = attr->val() != nullptr;
break;
case ATTR_TARGET:
m_hasTarget = attr->val() != nullptr;
break;
case ATTR_ALT:
break;
case ATTR_ACCESSKEY:
break;
default:
HTMLAnchorElementImpl::parseAttribute(attr);
}
}
bool HTMLAreaElementImpl::mapMouseEvent(int x_, int y_, int width_, int height_,
RenderObject::NodeInfo &info)
{
bool inside = false;
if (width_ != lastw || height_ != lasth) {
region = getRegion(width_, height_);
lastw = width_; lasth = height_;
}
if (region.contains(QPoint(x_, y_))) {
inside = true;
info.setInnerNode(this);
info.setURLElement(this);
}
return inside;
}
QRect HTMLAreaElementImpl::getRect() const
{
if (parentNode()->renderer() == nullptr) {
return QRect();
}
int dx, dy;
if (!parentNode()->renderer()->absolutePosition(dx, dy)) {
return QRect();
}
QRegion region = getRegion(lastw, lasth);
region.translate(dx, dy);
return region.boundingRect();
}
QRegion HTMLAreaElementImpl::getRegion(int width_, int height_) const
{
QRegion region;
if (!m_coords) {
return region;
}
// added broken HTML support (Dirk): some pages omit the SHAPE
// attribute, so we try to guess by looking at the coords count
// what the HTML author tried to tell us.
// a Poly needs at least 3 points (6 coords), so this is correct
if ((shape == Poly || shape == Unknown) && m_coordsLen > 5) {
// make sure it is even
int len = m_coordsLen >> 1;
QPolygon points(len);
for (int i = 0; i < len; ++i)
points.setPoint(i, m_coords[(i << 1)].minWidth(width_),
m_coords[(i << 1) + 1].minWidth(height_));
region = QRegion(points);
} else if ((shape == Circle && m_coordsLen >= 3) || (shape == Unknown && m_coordsLen == 3)) {
int r = qMin(m_coords[2].minWidth(width_), m_coords[2].minWidth(height_));
region = QRegion(m_coords[0].minWidth(width_) - r,
m_coords[1].minWidth(height_) - r, 2 * r, 2 * r, QRegion::Ellipse);
} else if ((shape == Rect && m_coordsLen >= 4) || (shape == Unknown && m_coordsLen == 4)) {
int x0 = m_coords[0].minWidth(width_);
int y0 = m_coords[1].minWidth(height_);
int x1 = m_coords[2].minWidth(width_);
int y1 = m_coords[3].minWidth(height_);
// use qMin () and qAbs () to make sure that this works for any pair
// of opposite corners (x0,y0) and (x1,y1)
region = QRegion(qMin(x0, x1), qMin(y0, y1), qAbs(x1 - x0), qAbs(y1 - y0));
} else if (shape == Default) {
region = QRegion(0, 0, width_, height_);
}
// else
// return null region
return region;
}
|