зеркало из https://github.com/mozilla/gecko-dev.git
859 строки
23 KiB
C
859 строки
23 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
/*
|
|
* Image reflection and event notification
|
|
*
|
|
* Scott Furman, 3/30/96
|
|
*/
|
|
|
|
#include "lm.h"
|
|
|
|
#include "lo_ele.h"
|
|
#include "prtypes.h"
|
|
#include "pa_tags.h"
|
|
#include "layout.h"
|
|
|
|
#define IL_CLIENT
|
|
#include "libimg.h" /* Image Library public API. */
|
|
|
|
enum image_array_slot {
|
|
IMAGE_ARRAY_LENGTH = -1
|
|
};
|
|
|
|
static JSPropertySpec image_array_props[] = {
|
|
{lm_length_str, IMAGE_ARRAY_LENGTH,
|
|
JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT},
|
|
{0}
|
|
};
|
|
|
|
extern JSClass lm_image_array_class;
|
|
|
|
PR_STATIC_CALLBACK(JSBool)
|
|
image_array_getProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
|
|
{
|
|
JSObjectArray *array;
|
|
MochaDecoder *decoder;
|
|
MWContext *context;
|
|
jsint count, slot;
|
|
LO_ImageStruct *image;
|
|
int32 active_layer_id;
|
|
|
|
if (!JSVAL_IS_INT(id))
|
|
return JS_TRUE;
|
|
|
|
slot = JSVAL_TO_INT(id);
|
|
|
|
array = JS_GetInstancePrivate(cx, obj, &lm_image_array_class, NULL);
|
|
if (!array)
|
|
return JS_TRUE;
|
|
decoder = array->decoder;
|
|
context = decoder->window_context;
|
|
if (!context)
|
|
return JS_TRUE;
|
|
|
|
LO_LockLayout();
|
|
switch (slot) {
|
|
case IMAGE_ARRAY_LENGTH:
|
|
active_layer_id = LM_GetActiveLayer(context);
|
|
LM_SetActiveLayer(context, array->layer_id);
|
|
count = LO_EnumerateImages(context, array->layer_id);
|
|
LM_SetActiveLayer(context, active_layer_id);
|
|
if (count > array->length)
|
|
array->length = count;
|
|
*vp = INT_TO_JSVAL(count);
|
|
break;
|
|
|
|
default:
|
|
if (slot < 0) {
|
|
/* Don't mess with user-defined or method properties. */
|
|
LO_UnlockLayout();
|
|
return JS_TRUE;
|
|
}
|
|
if (slot >= array->length)
|
|
array->length = slot + 1;
|
|
image = LO_GetImageByIndex(context, array->layer_id, (uint)slot);
|
|
if (image) {
|
|
*vp = OBJECT_TO_JSVAL(LM_ReflectImage(context, image, NULL,
|
|
array->layer_id,
|
|
(uint)slot));
|
|
}
|
|
break;
|
|
}
|
|
LO_UnlockLayout();
|
|
return JS_TRUE;
|
|
}
|
|
|
|
PR_STATIC_CALLBACK(void)
|
|
image_array_finalize(JSContext *cx, JSObject *obj)
|
|
{
|
|
JSObjectArray *array;
|
|
|
|
array = JS_GetPrivate(cx, obj);
|
|
if (!array)
|
|
return;
|
|
DROP_BACK_COUNT(array->decoder);
|
|
JS_free(cx, array);
|
|
}
|
|
|
|
JSClass lm_image_array_class = {
|
|
"ImageArray", JSCLASS_HAS_PRIVATE,
|
|
JS_PropertyStub, JS_PropertyStub,
|
|
image_array_getProperty, image_array_getProperty, JS_EnumerateStub,
|
|
JS_ResolveStub, JS_ConvertStub, image_array_finalize
|
|
};
|
|
|
|
enum image_slot {
|
|
IMAGE_NAME = -2,
|
|
IMAGE_SRC = -3,
|
|
IMAGE_LOWSRC = -4,
|
|
IMAGE_X = -5,
|
|
IMAGE_Y = -6,
|
|
IMAGE_HEIGHT = -7,
|
|
IMAGE_WIDTH = -8,
|
|
IMAGE_BORDER = -9,
|
|
IMAGE_VSPACE = -10,
|
|
IMAGE_HSPACE = -11,
|
|
IMAGE_COMPLETE = -12
|
|
};
|
|
|
|
static JSPropertySpec image_props[] = {
|
|
{"name", IMAGE_NAME, JSPROP_ENUMERATE | JSPROP_READONLY},
|
|
{"src", IMAGE_SRC, JSPROP_ENUMERATE},
|
|
{"lowsrc", IMAGE_LOWSRC, JSPROP_ENUMERATE},
|
|
{"x", IMAGE_X, JSPROP_ENUMERATE | JSPROP_READONLY},
|
|
{"y", IMAGE_Y, JSPROP_ENUMERATE | JSPROP_READONLY},
|
|
{"height", IMAGE_HEIGHT, JSPROP_ENUMERATE | JSPROP_READONLY},
|
|
{"width", IMAGE_WIDTH, JSPROP_ENUMERATE | JSPROP_READONLY},
|
|
{"border", IMAGE_BORDER, JSPROP_ENUMERATE | JSPROP_READONLY},
|
|
{"vspace", IMAGE_VSPACE, JSPROP_ENUMERATE | JSPROP_READONLY},
|
|
{"hspace", IMAGE_HSPACE, JSPROP_ENUMERATE | JSPROP_READONLY},
|
|
{"complete", IMAGE_COMPLETE, JSPROP_ENUMERATE | JSPROP_READONLY},
|
|
{0}
|
|
};
|
|
|
|
/*
|
|
* Base image element type.
|
|
*/
|
|
typedef struct JSImage {
|
|
JSEventReceiver receiver;
|
|
MochaDecoder *decoder;
|
|
LO_ImageStruct *image_data; /* 0 unless made by new Image() */
|
|
uint8 pending_events;
|
|
int32 layer_id;
|
|
uint index;
|
|
JSBool complete; /* Finished loading or aborted */
|
|
JSString *name;
|
|
} JSImage;
|
|
|
|
#define GET_IMAGE_DATA(context, image) \
|
|
((image)->image_data ? (image)->image_data \
|
|
: LO_GetImageByIndex((context), (image)->layer_id, (image)->index))
|
|
|
|
extern JSClass lm_image_class;
|
|
|
|
/*
|
|
* Force the mozilla event queue to flush to make sure any image-set-src
|
|
* events have been processed
|
|
*/
|
|
PR_STATIC_CALLBACK(void)
|
|
lm_img_src_sync(void * data)
|
|
{
|
|
}
|
|
|
|
|
|
PR_STATIC_CALLBACK(JSBool)
|
|
image_getProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
|
|
{
|
|
JSImage *image;
|
|
LO_ImageStruct *image_data;
|
|
enum image_slot image_slot;
|
|
JSString *str;
|
|
jsint slot;
|
|
|
|
if (!JSVAL_IS_INT(id))
|
|
return JS_TRUE;
|
|
|
|
slot = JSVAL_TO_INT(id);
|
|
|
|
image = JS_GetInstancePrivate(cx, obj, &lm_image_class, NULL);
|
|
if (!image)
|
|
return JS_TRUE;
|
|
image_data = GET_IMAGE_DATA(image->decoder->window_context, image);
|
|
if (!image_data)
|
|
return JS_TRUE; /* Try to handle this case gracefully. */
|
|
|
|
image_slot = slot;
|
|
if (image_slot == IMAGE_SRC || image_slot == IMAGE_LOWSRC) {
|
|
if (!lm_CheckPermissions(cx, obj, JSTARGET_UNIVERSAL_BROWSER_READ))
|
|
return JS_FALSE;
|
|
}
|
|
|
|
switch (image_slot) {
|
|
case IMAGE_NAME:
|
|
if (image->name)
|
|
*vp = STRING_TO_JSVAL(image->name);
|
|
else
|
|
*vp = JSVAL_NULL;
|
|
break;
|
|
|
|
case IMAGE_SRC:
|
|
if (image_data->pending_mocha_event) {
|
|
ET_moz_CallFunction(lm_img_src_sync, NULL);
|
|
image_data->pending_mocha_event = PR_FALSE;
|
|
}
|
|
str = JS_NewStringCopyZ(cx, (char*)image_data->image_url);
|
|
if (!str)
|
|
return JS_FALSE;
|
|
*vp = STRING_TO_JSVAL(str);
|
|
break;
|
|
|
|
case IMAGE_LOWSRC:
|
|
if (image_data->pending_mocha_event) {
|
|
ET_moz_CallFunction(lm_img_src_sync, NULL);
|
|
image_data->pending_mocha_event = PR_FALSE;
|
|
}
|
|
str = JS_NewStringCopyZ(cx, (char*)image_data->lowres_image_url);
|
|
if (!str)
|
|
return JS_FALSE;
|
|
*vp = STRING_TO_JSVAL(str);
|
|
break;
|
|
|
|
case IMAGE_X:
|
|
*vp = INT_TO_JSVAL(image_data->x + image_data->x_offset);
|
|
break;
|
|
|
|
case IMAGE_Y:
|
|
*vp = INT_TO_JSVAL(image_data->y + image_data->y_offset);
|
|
break;
|
|
|
|
case IMAGE_HEIGHT:
|
|
*vp = INT_TO_JSVAL(image_data->height);
|
|
break;
|
|
|
|
case IMAGE_WIDTH:
|
|
*vp = INT_TO_JSVAL(image_data->width);
|
|
break;
|
|
|
|
case IMAGE_BORDER:
|
|
*vp = INT_TO_JSVAL(image_data->border_width);
|
|
break;
|
|
|
|
case IMAGE_HSPACE:
|
|
*vp = INT_TO_JSVAL(image_data->border_horiz_space);
|
|
break;
|
|
|
|
case IMAGE_VSPACE:
|
|
*vp = INT_TO_JSVAL(image_data->border_vert_space);
|
|
break;
|
|
|
|
case IMAGE_COMPLETE:
|
|
*vp = BOOLEAN_TO_JSVAL(image->complete);
|
|
break;
|
|
|
|
default:
|
|
/* Don't mess with a user-defined or method property. */
|
|
return JS_TRUE;
|
|
}
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
static JSBool
|
|
image_set_src(JSImage *image, const char *str, LO_ImageStruct *image_data)
|
|
{
|
|
MochaDecoder *decoder;
|
|
MWContext *context;
|
|
IL_GroupContext *img_cx;
|
|
|
|
decoder = image->decoder;
|
|
context = decoder->window_context;
|
|
img_cx = decoder->image_context;
|
|
|
|
if (!context) return JS_TRUE;
|
|
|
|
image_data->pending_mocha_event = PR_TRUE;
|
|
image_data->image_attr->attrmask |= LO_ATTR_MOCHA_IMAGE;
|
|
|
|
ET_il_GetImage(str, context, img_cx, image_data, NET_DONT_RELOAD);
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
PR_STATIC_CALLBACK(JSBool)
|
|
image_setProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
|
|
{
|
|
JSBool ok=JS_FALSE;
|
|
JSImage *image;
|
|
MochaDecoder *decoder;
|
|
MWContext *context;
|
|
LO_ImageStruct *image_data;
|
|
enum image_slot image_slot;
|
|
const char *url;
|
|
jsint slot;
|
|
|
|
image = JS_GetInstancePrivate(cx, obj, &lm_image_class, NULL);
|
|
if (!image)
|
|
return JS_TRUE;
|
|
decoder = image->decoder;
|
|
context = decoder->window_context;
|
|
if (!context)
|
|
return JS_TRUE;
|
|
|
|
if (!JSVAL_IS_INT(id))
|
|
return JS_TRUE;
|
|
|
|
slot = JSVAL_TO_INT(id);
|
|
|
|
image_data = GET_IMAGE_DATA(context, image);
|
|
if (!image_data)
|
|
return JS_TRUE; /* Try to handle this case gracefully. */
|
|
|
|
image_slot = slot;
|
|
switch (image_slot) {
|
|
case IMAGE_SRC:
|
|
case IMAGE_LOWSRC:
|
|
if (!lm_CheckPermissions(cx, obj, JSTARGET_UNIVERSAL_BROWSER_WRITE))
|
|
return JS_FALSE;
|
|
|
|
if (JSVAL_IS_NULL(*vp)) {
|
|
url = NULL;
|
|
} else {
|
|
if (!JSVAL_IS_STRING(*vp) &&
|
|
!JS_ConvertValue(cx, *vp, JSTYPE_STRING, vp))
|
|
return JS_FALSE;
|
|
|
|
url = JS_GetStringBytes(JSVAL_TO_STRING(*vp));
|
|
url = lm_CheckURL(cx, url, JS_TRUE); /* will allocate new string */
|
|
if (!url)
|
|
return JS_FALSE;
|
|
}
|
|
|
|
if (image_slot == IMAGE_SRC) {
|
|
ok = image_set_src(image, url, image_data);
|
|
} else if (url) {
|
|
ok = lm_SaveParamString(cx, &image_data->lowres_image_url, url);
|
|
}
|
|
|
|
if (url)
|
|
XP_FREE((void *) url);
|
|
|
|
if (!ok)
|
|
return JS_FALSE;
|
|
|
|
/*
|
|
* don't call image_getProperty so that we don't immediately
|
|
* turn around and block
|
|
*/
|
|
return JS_TRUE;
|
|
break;
|
|
|
|
case IMAGE_NAME:
|
|
case IMAGE_X:
|
|
case IMAGE_Y:
|
|
case IMAGE_HEIGHT:
|
|
case IMAGE_WIDTH:
|
|
case IMAGE_BORDER:
|
|
case IMAGE_VSPACE:
|
|
case IMAGE_HSPACE:
|
|
case IMAGE_COMPLETE:
|
|
/* These are immutable. */
|
|
break;
|
|
}
|
|
|
|
return image_getProperty(cx, obj, id, vp);
|
|
}
|
|
|
|
PR_STATIC_CALLBACK(void)
|
|
image_finalize(JSContext *cx, JSObject *obj)
|
|
{
|
|
JSImage *image;
|
|
LO_ImageStruct *image_data;
|
|
MochaDecoder *decoder;
|
|
MWContext *context;
|
|
|
|
image = JS_GetPrivate(cx, obj);
|
|
if (!image)
|
|
return;
|
|
|
|
image_data = image->image_data;
|
|
decoder = image->decoder;
|
|
context = decoder->window_context;
|
|
if (image_data) {
|
|
/* If this is a layer background image or a reflection of an
|
|
existing layout image, then layout will take care of
|
|
destroying the image. For anonymous images, however,
|
|
we need to handle destruction here. */
|
|
if (!image_data->layer) {
|
|
ET_PostFreeImageElement(context, image_data);
|
|
XP_FREE(image_data->image_attr);
|
|
XP_FREE(image_data);
|
|
}
|
|
} else {
|
|
if (context) {
|
|
LO_LockLayout();
|
|
image_data = LO_GetImageByIndex(context, image->layer_id,
|
|
image->index);
|
|
if (image_data && image_data->mocha_object == obj)
|
|
image_data->mocha_object = NULL;
|
|
LO_UnlockLayout();
|
|
}
|
|
}
|
|
DROP_BACK_COUNT(decoder);
|
|
|
|
JS_UnlockGCThing(cx, image->name);
|
|
JS_free(cx, image);
|
|
}
|
|
|
|
JSClass lm_image_class = {
|
|
"Image", JSCLASS_HAS_PRIVATE,
|
|
JS_PropertyStub, JS_PropertyStub, image_getProperty, image_setProperty,
|
|
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, image_finalize
|
|
};
|
|
|
|
/* Fill in native, private part of JS image */
|
|
static JSImage *
|
|
init_image_object(JSContext *cx, JSObject *obj, LO_ImageStruct *image_data)
|
|
{
|
|
JSImage *image;
|
|
MochaDecoder *decoder;
|
|
|
|
image = JS_malloc(cx, sizeof *image);
|
|
if (!image)
|
|
return NULL;
|
|
XP_BZERO(image, sizeof *image);
|
|
|
|
image->image_data = image_data;
|
|
decoder = JS_GetPrivate(cx, JS_GetGlobalObject(cx));
|
|
image->decoder = HOLD_BACK_COUNT(decoder);
|
|
image_data->mocha_object = obj;
|
|
|
|
/* Events are never blocked for anonymous images
|
|
since there is no associated layout. */
|
|
image->pending_events = PR_BIT(LM_IMGUNBLOCK);
|
|
if (!JS_SetPrivate(cx, obj, image))
|
|
return NULL;
|
|
|
|
return image;
|
|
}
|
|
|
|
JSObject *
|
|
lm_NewImage(JSContext *cx,
|
|
LO_ImageStruct *image_data)
|
|
{
|
|
JSObject *obj, *outer_obj;
|
|
MochaDecoder *decoder;
|
|
decoder = JS_GetPrivate(cx, JS_GetGlobalObject(cx));
|
|
outer_obj = lm_GetOuterObject(decoder);
|
|
|
|
obj = JS_NewObject(cx, &lm_image_class, decoder->image_prototype,
|
|
outer_obj);
|
|
if (!init_image_object(cx, obj, image_data))
|
|
return NULL;
|
|
|
|
return obj;
|
|
}
|
|
|
|
PR_STATIC_CALLBACK(JSBool)
|
|
Image(JSContext *cx, JSObject *obj, uint argc, jsval *argv, jsval *rval)
|
|
{
|
|
jsint width, height;
|
|
LO_ImageStruct *image_data;
|
|
|
|
XP_ASSERT(JS_InstanceOf(cx, obj, &lm_image_class, NULL));
|
|
|
|
height = width = 0;
|
|
|
|
if (argc > 0) {
|
|
if (argc != 2) {
|
|
JS_ReportError(cx, lm_argc_err_str);
|
|
return JS_FALSE;
|
|
}
|
|
if (!JSVAL_IS_INT(argv[0]) ||
|
|
!JSVAL_IS_INT(argv[1])) {
|
|
return JS_FALSE;
|
|
}
|
|
width = JSVAL_TO_INT(argv[0]);
|
|
height = JSVAL_TO_INT(argv[1]);
|
|
}
|
|
|
|
/* Allocate dummy layout structure. This is not really
|
|
used by layout, but the front-ends and the imagelib
|
|
need it as a handle on an image instance. */
|
|
image_data = XP_NEW_ZAP(LO_ImageStruct);
|
|
if (!image_data) {
|
|
JS_ReportOutOfMemory(cx);
|
|
return JS_FALSE;
|
|
}
|
|
image_data->image_attr = XP_NEW_ZAP(LO_ImageAttr);
|
|
if (!image_data->image_attr) {
|
|
XP_FREE(image_data);
|
|
JS_ReportOutOfMemory(cx);
|
|
return JS_FALSE;
|
|
}
|
|
|
|
image_data->type = LO_IMAGE;
|
|
|
|
/* Fake layout ID, guaranteed not to match any real layout element */
|
|
image_data->ele_id = -1;
|
|
|
|
if (!init_image_object(cx, obj, image_data)) {
|
|
XP_FREE(image_data->image_attr);
|
|
XP_FREE(image_data);
|
|
return JS_FALSE;
|
|
}
|
|
|
|
/* Process arguments */
|
|
|
|
/* Width & Height */
|
|
if (argc == 2) {
|
|
image_data->width = (int)width;
|
|
image_data->height = (int)height;
|
|
}
|
|
|
|
return JS_TRUE;
|
|
}
|
|
|
|
static JSObject *
|
|
reflect_image_array(MochaDecoder *decoder, JSObject *document)
|
|
{
|
|
JSContext *cx;
|
|
JSObjectArray *array;
|
|
JSObject *obj;
|
|
JSDocument *doc;
|
|
|
|
cx = decoder->js_context;
|
|
doc = JS_GetPrivate(cx, document);
|
|
if (!doc)
|
|
return NULL;
|
|
|
|
array = JS_malloc(cx, sizeof *array);
|
|
if (!array)
|
|
return NULL;
|
|
XP_BZERO(array, sizeof *array);
|
|
|
|
obj = JS_NewObject(cx, &lm_image_array_class, NULL, document);
|
|
if (!obj || !JS_SetPrivate(cx, obj, array)) {
|
|
LM_PutMochaDecoder(decoder);
|
|
return NULL;
|
|
}
|
|
|
|
if (!JS_DefineProperties(cx, obj, image_array_props))
|
|
return NULL;
|
|
|
|
array->decoder = HOLD_BACK_COUNT(decoder);
|
|
array->layer_id = doc->layer_id;
|
|
return obj;
|
|
}
|
|
|
|
JSObject *
|
|
lm_GetImageArray(MochaDecoder *decoder, JSObject *document)
|
|
{
|
|
JSObject *obj;
|
|
JSDocument *doc;
|
|
|
|
doc = JS_GetPrivate(decoder->js_context, document);
|
|
if (!doc)
|
|
return NULL;
|
|
|
|
obj = doc->images;
|
|
if (obj)
|
|
return obj;
|
|
obj = reflect_image_array(decoder, document);
|
|
doc->images = obj;
|
|
return obj;
|
|
}
|
|
|
|
JSObject *
|
|
LM_ReflectImage(MWContext *context, LO_ImageStruct *image_data,
|
|
PA_Tag * tag, int32 layer_id, uint index)
|
|
{
|
|
JSObject *obj, *array_obj, *outer_obj, *document;
|
|
MochaDecoder *decoder;
|
|
JSContext *cx;
|
|
JSImage *image;
|
|
PA_Block name = NULL;
|
|
lo_TopState *top_state;
|
|
PRHashTable *map;
|
|
|
|
image_data = LO_GetImageByIndex(context, layer_id, index);
|
|
XP_ASSERT(image_data);
|
|
if (! image_data)
|
|
return NULL;
|
|
|
|
obj = image_data->mocha_object;
|
|
if (obj)
|
|
return obj;
|
|
|
|
decoder = LM_GetMochaDecoder(context);
|
|
if (!decoder)
|
|
return NULL;
|
|
cx = decoder->js_context;
|
|
|
|
top_state = lo_GetMochaTopState(context);
|
|
if (top_state->resize_reload) {
|
|
map = lm_GetIdToObjectMap(decoder);
|
|
|
|
if (map)
|
|
obj = (JSObject *)PR_HashTableLookup(map,
|
|
LM_GET_MAPPING_KEY(LM_IMAGES, layer_id, index));
|
|
if (obj) {
|
|
image_data->mocha_object = obj;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/* Get the document object that will hold this link */
|
|
document = lm_GetDocumentFromLayerId(decoder, layer_id);
|
|
if (!document)
|
|
goto done;
|
|
|
|
array_obj = lm_GetImageArray(decoder, document);
|
|
if (!array_obj)
|
|
goto done;
|
|
|
|
image = JS_malloc(cx, sizeof *image);
|
|
if (!image)
|
|
goto done;
|
|
|
|
XP_BZERO(image, sizeof *image);
|
|
|
|
/* if we got a tag passed in try to get the name out of there */
|
|
name = lo_FetchParamValue(context, tag, PARAM_NAME);
|
|
|
|
outer_obj = lm_GetOuterObject(decoder);
|
|
|
|
obj = JS_NewObject(cx, &lm_image_class, decoder->image_prototype,
|
|
outer_obj);
|
|
if (!obj || !JS_SetPrivate(cx, obj, image)) {
|
|
JS_free(cx, image);
|
|
goto done;
|
|
}
|
|
|
|
if (name) {
|
|
JSObject *doc_obj;
|
|
extern JSClass lm_form_class;
|
|
|
|
if (!JS_DefineProperty(cx, outer_obj, (const char *) name,
|
|
OBJECT_TO_JSVAL(obj), NULL, NULL,
|
|
JSPROP_ENUMERATE|JSPROP_READONLY)) {
|
|
obj = NULL;
|
|
goto done;
|
|
}
|
|
/* XXX backward compatibility with 3.0 bug: lo_BlockedImageLayout
|
|
would eagerly reflect images outside of any active form, so
|
|
they'd end up in document scope. */
|
|
if (JS_GetClass(cx, outer_obj) == &lm_form_class &&
|
|
(doc_obj = JS_GetParent(cx, outer_obj)) != NULL &&
|
|
!JS_DefineProperty(cx, doc_obj, (const char *) name,
|
|
OBJECT_TO_JSVAL(obj), NULL, NULL,
|
|
JSPROP_ENUMERATE|JSPROP_READONLY)) {
|
|
obj = NULL;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
image->decoder = HOLD_BACK_COUNT(decoder);
|
|
image->index = index;
|
|
image->layer_id = layer_id;
|
|
image->name = JS_NewStringCopyZ(cx, (const char *) name);
|
|
if (!JS_LockGCThing(cx, image->name)) {
|
|
obj = NULL;
|
|
goto done;
|
|
}
|
|
image_data->mocha_object = obj;
|
|
|
|
if (!lm_AddObjectToArray(cx, array_obj, (const char *) name,
|
|
index, obj)) {
|
|
obj = NULL;
|
|
goto done;
|
|
}
|
|
|
|
/* Put it in the index to object hash table */
|
|
map = lm_GetIdToObjectMap(decoder);
|
|
if (map)
|
|
PR_HashTableAdd(map,
|
|
LM_GET_MAPPING_KEY(LM_IMAGES, layer_id, index),
|
|
obj);
|
|
|
|
/* OK, we've got our image, see if there are any event handlers
|
|
* defined with it
|
|
*/
|
|
if(tag) {
|
|
PA_Block onload = lo_FetchParamValue(context, tag, PARAM_ONLOAD);
|
|
PA_Block onabort = lo_FetchParamValue(context, tag, PARAM_ONABORT);
|
|
PA_Block onerror = lo_FetchParamValue(context, tag, PARAM_ONERROR);
|
|
PA_Block onmousedown = lo_FetchParamValue(context, tag, PARAM_ONMOUSEDOWN);
|
|
PA_Block onmouseup = lo_FetchParamValue(context, tag, PARAM_ONMOUSEUP);
|
|
PA_Block id = lo_FetchParamValue(context, tag, PARAM_ID);
|
|
|
|
/* don't hold the layout lock across compiles */
|
|
LO_UnlockLayout();
|
|
|
|
if (onload != NULL) {
|
|
(void) lm_CompileEventHandler(decoder, id, tag->data,
|
|
tag->newline_count, obj,
|
|
PARAM_ONLOAD, onload);
|
|
PA_FREE(onload);
|
|
}
|
|
|
|
if (onabort != NULL) {
|
|
(void) lm_CompileEventHandler(decoder, id, tag->data,
|
|
tag->newline_count, obj,
|
|
PARAM_ONABORT, onabort);
|
|
PA_FREE(onabort);
|
|
}
|
|
|
|
if (onerror != NULL) {
|
|
(void) lm_CompileEventHandler(decoder, id, tag->data,
|
|
tag->newline_count, obj,
|
|
PARAM_ONERROR, onerror);
|
|
PA_FREE(onerror);
|
|
}
|
|
if (onmousedown != NULL) {
|
|
(void) lm_CompileEventHandler(decoder, id, tag->data,
|
|
tag->newline_count, obj,
|
|
PARAM_ONMOUSEDOWN, onmousedown);
|
|
PA_FREE(onmousedown);
|
|
}
|
|
if (onmouseup != NULL) {
|
|
(void) lm_CompileEventHandler(decoder, id, tag->data,
|
|
tag->newline_count, obj,
|
|
PARAM_ONMOUSEUP, onmouseup);
|
|
PA_FREE(onmouseup);
|
|
}
|
|
|
|
if (id)
|
|
PA_FREE(id);
|
|
|
|
LO_LockLayout();
|
|
}
|
|
|
|
done:
|
|
|
|
if(name)
|
|
PA_FREE(name);
|
|
LM_PutMochaDecoder(decoder);
|
|
|
|
return obj;
|
|
}
|
|
|
|
void
|
|
lm_ProcessImageEvent(MWContext *context, JSObject *obj,
|
|
LM_ImageEvent event)
|
|
{
|
|
uint event_mask;
|
|
jsval result;
|
|
JSImage *image;
|
|
|
|
image = JS_GetPrivate(context->mocha_context, obj);
|
|
if (!image)
|
|
return;
|
|
|
|
image->pending_events |= PR_BIT(event);
|
|
|
|
/* Special event used to trigger deferred events */
|
|
if (! (image->pending_events & PR_BIT(LM_IMGUNBLOCK)))
|
|
return;
|
|
|
|
for (event = LM_IMGLOAD; event <= LM_LASTEVENT; event++) {
|
|
event_mask = PR_BIT(event);
|
|
if (image->pending_events & event_mask) {
|
|
|
|
JSEvent *pEvent;
|
|
pEvent=XP_NEW_ZAP(JSEvent);
|
|
|
|
image->pending_events &= ~event_mask;
|
|
switch (event) {
|
|
case LM_IMGLOAD:
|
|
pEvent->type = EVENT_LOAD;
|
|
image->complete = JS_TRUE;
|
|
break;
|
|
case LM_IMGABORT:
|
|
pEvent->type = EVENT_ABORT;
|
|
image->complete = JS_TRUE;
|
|
break;
|
|
case LM_IMGERROR:
|
|
pEvent->type = EVENT_ERROR;
|
|
image->complete = JS_TRUE;
|
|
break;
|
|
default:
|
|
XP_ABORT(("Unknown image event"));
|
|
}
|
|
|
|
lm_SendEvent(context, obj, pEvent, &result);
|
|
}
|
|
}
|
|
}
|
|
|
|
JSBool
|
|
lm_InitImageClass(MochaDecoder *decoder)
|
|
{
|
|
JSContext *cx;
|
|
JSObject *prototype;
|
|
|
|
cx = decoder->js_context;
|
|
prototype = JS_InitClass(cx, decoder->window_object,
|
|
decoder->event_receiver_prototype, &lm_image_class,
|
|
Image, 0, image_props, NULL, NULL, NULL);
|
|
if (!prototype)
|
|
return JS_FALSE;
|
|
decoder->image_prototype = prototype;
|
|
return JS_TRUE;
|
|
}
|
|
|
|
/* Create an image context for anonymous images and attach it to the specified
|
|
mocha decoder. */
|
|
JSBool
|
|
lm_NewImageContext(MWContext *context, MochaDecoder *decoder)
|
|
{
|
|
IL_GroupContext *img_cx;
|
|
IMGCB* img_cb;
|
|
JMCException *exc = NULL;
|
|
|
|
if (!decoder->image_context) {
|
|
img_cb = IMGCBFactory_Create(&exc); /* JMC Module */
|
|
if (exc) {
|
|
JMC_DELETE_EXCEPTION(&exc); /* XXX Should really return
|
|
exception */
|
|
JS_ReportOutOfMemory(decoder->js_context);
|
|
return JS_FALSE;
|
|
}
|
|
|
|
/* Create an Image Group Context. IL_NewGroupContext augments the
|
|
reference count for the JMC callback interface. The opaque argument
|
|
to IL_NewGroupContext is the Front End's display context, which will
|
|
be passed back to all the Image Library's FE callbacks. */
|
|
img_cx = IL_NewGroupContext((void*)context, (IMGCBIF *)img_cb);
|
|
if (!img_cx) {
|
|
JS_ReportOutOfMemory(decoder->js_context);
|
|
return JS_FALSE;
|
|
}
|
|
|
|
/* Attach the IL_GroupContext to the mocha decoder. */
|
|
decoder->image_context = img_cx;
|
|
|
|
/* Allow the context to observe the decoder's image context. */
|
|
ET_il_SetGroupObserver(context, decoder->image_context, context, JS_TRUE);
|
|
}
|
|
return JS_TRUE;
|
|
}
|