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pjs/lib/layout/layembed.c

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/* -*- 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 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "xp.h"
#include "net.h"
#include "pa_parse.h"
#include "layout.h"
#include "laylayer.h"
#include "np.h"
#include "np2.h"
#include "laystyle.h"
#include "layers.h"
#ifdef ANTHRAX /* 9.23.97 amusil */
#include "prefapi.h"
#endif /* ANTHRAX */
#ifdef XP_WIN16
#define SIZE_LIMIT 32000
#endif /* XP_WIN16 */
#define EMBED_DEF_DIM 50
#define EMBED_DEF_BORDER 0
#define EMBED_DEF_VERTICAL_SPACE 0
#define EMBED_DEF_HORIZONTAL_SPACE 0
void lo_FinishEmbed(MWContext *, lo_DocState *, LO_EmbedStruct *);
static void lo_FormatEmbedInternal(MWContext *, lo_DocState *, PA_Tag *,
LO_EmbedStruct *, Bool, Bool);
void
lo_AddEmbedData(MWContext *context, void *session_data, lo_FreeProc freeProc, int32 indx)
{
int32 doc_id;
lo_TopState *top_state;
lo_DocState *state;
lo_SavedEmbedListData *embed_list;
lo_EmbedDataElement* embed_data_list;
int32 old_count;
/*
* Get the state, so we can access the savedEmbedListData
* list for this document.
*/
doc_id = XP_DOCID(context);
top_state = lo_FetchTopState(doc_id);
if ((top_state != NULL) && (top_state->doc_state != NULL))
state = top_state->doc_state;
else
return;
embed_list = state->top_state->savedData.EmbedList;
if (embed_list == NULL)
return;
/*
* We may have to grow the list to fit this new data.
*/
if (indx >= embed_list->embed_count)
{
PA_Block old_embed_data_list; /* really a (lo_EmbedDataElement **) */
#ifdef XP_WIN16
/*
* On 16 bit windows arrays can just get too big.
*/
if (((indx + 1) * sizeof(lo_EmbedDataElement)) > SIZE_LIMIT)
return;
#endif /* XP_WIN16 */
old_count = embed_list->embed_count;
embed_list->embed_count = indx + 1;
old_embed_data_list = NULL;
if (old_count == 0) /* Allocate new array */
{
embed_list->embed_data_list = PA_ALLOC(
embed_list->embed_count * sizeof(lo_EmbedDataElement));
}
else /* Enlarge existing array */
{
old_embed_data_list = embed_list->embed_data_list;
embed_list->embed_data_list = PA_REALLOC(
embed_list->embed_data_list,
(embed_list->embed_count * sizeof(lo_EmbedDataElement)));
}
/*
* If we ran out of memory to grow the array.
*/
if (embed_list->embed_data_list == NULL)
{
embed_list->embed_data_list = old_embed_data_list;
embed_list->embed_count = old_count;
state->top_state->out_of_memory = TRUE;
return;
}
/*
* We enlarged the array, so make sure
* the new slots are zero-filled.
*/
PA_LOCK(embed_data_list, lo_EmbedDataElement*, embed_list->embed_data_list);
while (old_count < embed_list->embed_count)
{
embed_data_list[old_count].data = NULL;
embed_data_list[old_count].freeProc = NULL;
old_count++;
}
PA_UNLOCK(embed_list->embed_data_list);
}
/*
* Store the new data into the list.
*/
PA_LOCK(embed_data_list, lo_EmbedDataElement*, embed_list->embed_data_list);
embed_data_list[indx].data = session_data;
embed_data_list[indx].freeProc = freeProc;
PA_UNLOCK(embed_list->embed_data_list);
}
void
LO_ClearEmbedBlock(MWContext *context, LO_EmbedStruct *embed)
{
int32 doc_id;
lo_TopState *top_state;
lo_DocState *main_doc_state;
lo_DocState *state;
/*
* Get the unique document ID, and retreive this
* documents layout state.
*/
doc_id = XP_DOCID(context);
top_state = lo_FetchTopState(doc_id);
if ((top_state == NULL)||(top_state->doc_state == NULL))
{
return;
}
if (top_state->layout_blocking_element == (LO_Element *)embed)
{
if (embed->objTag.width == 0)
{
embed->objTag.width = EMBED_DEF_DIM;
}
if (embed->objTag.height == 0)
{
embed->objTag.height = EMBED_DEF_DIM;
}
main_doc_state = top_state->doc_state;
state = lo_CurrentSubState(main_doc_state);
lo_FinishEmbed(context, state, embed);
lo_FlushBlockage(context, state, main_doc_state);
}
}
void
lo_FormatEmbed(MWContext *context, lo_DocState *state, PA_Tag *tag)
{
LO_EmbedStruct *embed;
#ifdef ANTHRAX
LO_ObjectStruct* object;
PA_Block buff;
NET_cinfo* fileInfo;
char* str;
char* appletName;
uint32 src_len;
/* check to see if the type maps to an applet */
buff = lo_FetchParamValue(context, tag, PARAM_TYPE);
if(buff == NULL)
{
/* get SRC */
buff = lo_FetchParamValue(context, tag, PARAM_SRC);
PA_LOCK(str, char *, buff);
/* if we didn't find a type param, look for an association in the SRC */
fileInfo = NET_cinfo_find_type(str);
str = fileInfo->type;
}
else
PA_LOCK(str, char *, buff);
/* check to see if this mimetype has an applet handler */
if((appletName = NPL_FindAppletEnabledForMimetype(str)) != NULL)
{
PA_UNLOCK(buff);
if(buff)
XP_FREE(buff);
/* just pass it to our object handler */
lo_FormatObject(context, state, tag);
/* manually close the java app - this is normally done in lo_ProcessObjectTag */
lo_CloseJavaApp(context, state, state->current_java);
XP_FREE(appletName);
}
else
{
PA_UNLOCK(buff);
if(buff)
XP_FREE(buff);
#endif /* ANTHRAX */
embed = (LO_EmbedStruct *)lo_NewElement(context, state, LO_EMBED, NULL, 0);
if (embed == NULL)
{
return;
}
embed->objTag.type = LO_EMBED;
embed->objTag.ele_id = NEXT_ELEMENT;
embed->objTag.x = state->x;
embed->objTag.x_offset = 0;
embed->objTag.y = state->y;
embed->objTag.y_offset = 0;
embed->objTag.width = 0;
embed->objTag.height = 0;
embed->objTag.next = NULL;
embed->objTag.prev = NULL;
#ifdef OJI
LO_NVList_Init( &embed->attributes );
LO_NVList_Init( &embed->parameters );
embed->attributes.n = PA_FetchAllNameValues(tag,
&(embed->attributes.names), &(embed->attributes.values), CS_FE_ASCII);
#else
embed->attribute_cnt = 0;
embed->attribute_list = NULL;
embed->value_list = NULL;
embed->attribute_cnt = PA_FetchAllNameValues(tag,
&(embed->attribute_list), &(embed->value_list), CS_FE_ASCII);
#endif
lo_FormatEmbedInternal(context, state, tag, embed, FALSE, FALSE);
#ifdef ANTHRAX
}
#endif /* ANTHRAX */
}
void
lo_FormatEmbedObject(MWContext* context, lo_DocState* state,
PA_Tag* tag , LO_EmbedStruct* embed, Bool streamStarted,
uint32 param_count, char** param_names, char** param_values)
{
uint32 count;
int32 typeIndex = -1;
int32 classidIndex = -1;
#ifdef OJI
LO_NVList_Init(&embed->attributes);
embed->attributes.n = PA_FetchAllNameValues(tag,
&(embed->attributes.names), &(embed->attributes.values), CS_FE_ASCII);
#else
embed->attribute_cnt = 0;
embed->attribute_list = NULL;
embed->value_list = NULL;
embed->attribute_cnt = PA_FetchAllNameValues(tag,
&(embed->attribute_list), &(embed->value_list), CS_FE_ASCII);
#endif
#ifdef OJI
for (count = 0; count < (uint32)embed->attributes.n; count++)
{
if ( (XP_STRCASECMP(embed->attributes.names[count], PARAM_MAYSCRIPT) == 0)
&&(embed->attributes.values[count] == NULL) ) {
StrAllocCopy(embed->attributes.values[count], "true");
}
}
#else
/*
* Look through the parameters and replace "id"
* with "name" and "data" with "src", so that
* other code that looks up parameters by name
* can believe this is a normal EMBED.
*/
for (count = 0; count < (uint32)embed->attribute_cnt; count++)
{
if (XP_STRCASECMP(embed->attribute_list[count], PARAM_ID) == 0)
StrAllocCopy(embed->attribute_list[count], PARAM_NAME);
else if (XP_STRCASECMP(embed->attribute_list[count], PARAM_DATA) == 0)
StrAllocCopy(embed->attribute_list[count], "src");
else if (XP_STRCASECMP(embed->attribute_list[count], PARAM_TYPE) == 0)
typeIndex = count;
else if (XP_STRCASECMP(embed->attribute_list[count], PARAM_CLASSID) == 0)
classidIndex = count;
}
/*
* If we have a CLASSID attribute, add the appropriate
* TYPE attribute.
*/
if (classidIndex >= 0)
{
if (typeIndex >= 0)
{
/* Change current value of TYPE to application/oleobject */
if (XP_STRCASECMP(embed->value_list[typeIndex], APPLICATION_OLEOBJECT) != 0)
StrAllocCopy(embed->value_list[typeIndex], APPLICATION_OLEOBJECT);
}
else
{
/* Add TYPE=application/oleobject to the attribute list */
char* names[1];
char* values[1];
names[0] = XP_STRDUP(PARAM_TYPE);
values[0] = XP_STRDUP(APPLICATION_OLEOBJECT);
lo_AppendParamList((uint32*) &(embed->attribute_cnt),
&(embed->attribute_list),
&(embed->value_list),
1, names, values);
}
/* Lop off the "clsid:" prefix from the CLASSID attribute */
if (XP_STRNCASECMP(embed->value_list[classidIndex], "clsid:", 6) == 0)
{
char* classID = &(embed->value_list[classidIndex][6]);
XP_MEMMOVE(embed->value_list[classidIndex], classID,
(XP_STRLEN(classID) + 1) * sizeof(char));
}
}
#endif
/*
* Merge any parameters passed in with the ones in this tag.
* Separate the merged <PARAM> tag attributes from the
* <OBJECT> tag attributes with an extra "PARAM" attribute.
*/
#ifdef OJI
LO_NVList_Init(&embed->parameters);
#endif
if (param_count > 0)
{
#ifdef OJI
int i;
/* Add all <PARAM> tag parameters to the parameters list */
embed->parameters.names = (char**) PA_ALLOC(param_count*sizeof(char*));
embed->parameters.values = (char**) PA_ALLOC(param_count*sizeof(char*));
XP_MEMCPY( embed->parameters.names,
param_names,
param_count*sizeof(char*) );
XP_MEMCPY( embed->parameters.values,
param_values,
param_count*sizeof(char*) );
embed->parameters.n = param_count;
#else
char* names[1];
char* values[1];
names[0] = XP_STRDUP(PT_PARAM);
values[0] = NULL;
/* Add "PARAM" to the list */
lo_AppendParamList((uint32*) &(embed->attribute_cnt),
&(embed->attribute_list),
&(embed->value_list),
1, names, values);
/* Add all <PARAM> tag paramters to the list */
lo_AppendParamList((uint32*) &(embed->attribute_cnt),
&(embed->attribute_list),
&(embed->value_list),
param_count,
param_names,
param_values);
#endif /* OJI */
if (param_names != NULL)
XP_FREE(param_names);
if (param_values != NULL)
XP_FREE(param_values);
}
lo_FormatEmbedInternal(context, state, tag, embed, TRUE, streamStarted);
}
static void
lo_FormatEmbedInternal(MWContext *context, lo_DocState *state, PA_Tag *tag,
LO_EmbedStruct *embed, Bool isObject, Bool streamStarted)
{
PA_Block buff;
char *str;
int32 val;
int32 doc_width;
XP_Bool widthSpecified = FALSE;
XP_Bool heightSpecified = FALSE;
lo_DocLists *doc_lists;
embed->nextEmbed= NULL;
#ifdef MOCHA
embed->objTag.mocha_object = NULL;
#endif
embed->objTag.FE_Data = NULL;
embed->objTag.session_data = NULL;
embed->objTag.line_height = state->line_height;
embed->embed_src = NULL;
embed->objTag.alignment = LO_ALIGN_BASELINE;
embed->objTag.border_width = EMBED_DEF_BORDER;
embed->objTag.border_vert_space = EMBED_DEF_VERTICAL_SPACE;
embed->objTag.border_horiz_space = EMBED_DEF_HORIZONTAL_SPACE;
embed->objTag.tag = tag;
embed->objTag.ele_attrmask = 0;
embed->objTag.base_url = NULL;
if (streamStarted)
embed->objTag.ele_attrmask |= LO_ELE_STREAM_STARTED;
/*
* Convert any javascript in the values
*/
#ifdef OJI
lo_ConvertAllValues(context, embed->attributes.values, embed->attributes.n,
tag->newline_count);
#else
lo_ConvertAllValues(context, embed->value_list, embed->attribute_cnt,
tag->newline_count);
#endif
/* don't double-count loading plugins due to table relayout */
if (!state->in_relayout)
{
state->top_state->mocha_loading_embeds_count++;
}
/*
* Assign a unique index for this object
* and increment the master index.
*/
embed->objTag.embed_index = state->top_state->embed_count++;
/*
* Check for the hidden attribute value.
* HIDDEN embeds have no visible part.
*/
if (!isObject) /* OBJECT tag can't have "hidden" attribute */
{
buff = lo_FetchParamValue(context, tag, PARAM_HIDDEN);
if (buff != NULL)
{
Bool hidden;
hidden = TRUE;
PA_LOCK(str, char *, buff);
if (pa_TagEqual("no", str))
{
hidden = FALSE;
}
else if (pa_TagEqual("false", str))
{
hidden = FALSE;
}
else if (pa_TagEqual("off", str))
{
hidden = FALSE;
}
PA_UNLOCK(buff);
PA_FREE(buff);
if (hidden != FALSE)
{
embed->objTag.ele_attrmask |= LO_ELE_HIDDEN;
/* marcb says: had to disable the printed hidden audio feature */
if (context->type==MWContextPrint){
return;
}
}
}
}
/*
* Save away the base of the document
*/
buff = PA_ALLOC(XP_STRLEN(state->top_state->base_url) + 1);
if (buff != NULL)
{
char *cp;
PA_LOCK(cp, char*, buff);
XP_STRCPY(cp, state->top_state->base_url);
PA_UNLOCK(buff);
embed->objTag.base_url = buff;
}
else
{
state->top_state->out_of_memory = TRUE;
return;
}
/*
* Check for an align parameter
*/
buff = lo_FetchParamValue(context, tag, PARAM_ALIGN);
if (buff != NULL)
{
Bool floating;
floating = FALSE;
PA_LOCK(str, char *, buff);
embed->objTag.alignment = lo_EvalAlignParam(str, &floating);
if (floating != FALSE)
{
embed->objTag.ele_attrmask |= LO_ELE_FLOATING;
}
PA_UNLOCK(buff);
PA_FREE(buff);
}
/*
* Get the optional src parameter.
*/
if (isObject)
buff = lo_FetchParamValue(context, tag, PARAM_DATA);
else
buff = lo_FetchParamValue(context, tag, PARAM_SRC);
if (buff != NULL)
{
PA_Block new_buff;
char *new_str;
int32 len;
len = 1;
PA_LOCK(str, char *, buff);
if (str != NULL)
{
len = lo_StripTextWhitespace(str, XP_STRLEN(str));
}
if (str != NULL)
{
/* bing: make sure this deals with "data:" URLs */
new_str = NET_MakeAbsoluteURL(
state->top_state->base_url, str);
}
else
{
new_str = NULL;
}
if ((new_str == NULL)||(len == 0))
{
new_buff = NULL;
}
else
{
char *enbed_src;
new_buff = PA_ALLOC(XP_STRLEN(new_str) + 1);
if (new_buff != NULL)
{
PA_LOCK(enbed_src, char *, new_buff);
XP_STRCPY(enbed_src, new_str);
PA_UNLOCK(new_buff);
}
else
{
state->top_state->out_of_memory = TRUE;
}
XP_FREE(new_str);
}
PA_UNLOCK(buff);
PA_FREE(buff);
buff = new_buff;
}
embed->embed_src = buff;
doc_width = state->right_margin - state->left_margin;
/*
* Get the width parameter, in absolute or percentage.
* If percentage, make it absolute. If the height is
* zero, make the embed hidden so the FE knows that the
* size really is zero (zero size normally means that
* we're blocking).
*/
buff = lo_FetchParamValue(context, tag, PARAM_WIDTH);
if (buff != NULL)
{
Bool is_percent;
PA_LOCK(str, char *, buff);
val = lo_ValueOrPercent(str, &is_percent);
if (is_percent != FALSE)
{
embed->objTag.percent_width = val;
}
else
{
embed->objTag.percent_width = 0;
embed->objTag.width = val;
val = FEUNITS_X(val, context);
}
PA_UNLOCK(buff);
PA_FREE(buff);
widthSpecified = TRUE;
}
val = LO_GetWidthFromStyleSheet(context, state);
if(val)
{
embed->objTag.width = val;
embed->objTag.percent_width = 0;
widthSpecified = TRUE;
}
/*
* Get the height parameter, in absolute or percentage.
* If percentage, make it absolute. If the height is
* zero, make the embed hidden so the FE knows that the
* size really is zero (zero size normally means that
* we're blocking).
*/
buff = lo_FetchParamValue(context, tag, PARAM_HEIGHT);
if (buff != NULL)
{
Bool is_percent;
PA_LOCK(str, char *, buff);
val = lo_ValueOrPercent(str, &is_percent);
if (is_percent != FALSE)
{
embed->objTag.percent_height = val;
}
else
{
embed->objTag.percent_height = 0;
val = FEUNITS_Y(val, context);
}
embed->objTag.height = val;
PA_UNLOCK(buff);
PA_FREE(buff);
heightSpecified = TRUE;
}
val = LO_GetHeightFromStyleSheet(context, state);
if(val)
{
embed->objTag.height = val;
embed->objTag.percent_height = 0;
heightSpecified = TRUE;
}
#ifndef XP_WIN
/*
* If they forgot to specify a width or height, make one up.
* Don't do this for Windows, because they want to block
* layout for unsized OLE objects. (Eventually all FEs will
* want to support this behavior when there's a plug-in API
* to specify the desired size of the objTag.)
*/
if (!widthSpecified)
{
if (heightSpecified)
embed->objTag.width = embed->objTag.height;
else
embed->objTag.width = EMBED_DEF_DIM;
}
if (!heightSpecified)
{
if (widthSpecified)
embed->objTag.height = embed->objTag.width;
else
embed->objTag.height = EMBED_DEF_DIM;
}
#endif /* ifndef XP_WIN */
lo_FillInEmbedGeometry(state, embed, FALSE);
/*
* Get the extra vertical space parameter.
*/
buff = lo_FetchParamValue(context, tag, PARAM_VSPACE);
if (buff != NULL)
{
PA_LOCK(str, char *, buff);
val = XP_ATOI(str);
if (val < 0)
{
val = 0;
}
embed->objTag.border_vert_space = val;
PA_UNLOCK(buff);
PA_FREE(buff);
}
embed->objTag.border_vert_space = FEUNITS_Y(embed->objTag.border_vert_space, context);
/*
* Get the extra horizontal space parameter.
*/
buff = lo_FetchParamValue(context, tag, PARAM_HSPACE);
if (buff != NULL)
{
PA_LOCK(str, char *, buff);
val = XP_ATOI(str);
if (val < 0)
{
val = 0;
}
embed->objTag.border_horiz_space = val;
PA_UNLOCK(buff);
PA_FREE(buff);
}
embed->objTag.border_horiz_space = FEUNITS_X(embed->objTag.border_horiz_space,
context);
/*
* See if we have some saved embed session data to restore.
*/
if (state->top_state->savedData.EmbedList != NULL)
{
lo_SavedEmbedListData *embed_list;
embed_list = state->top_state->savedData.EmbedList;
/*
* If there is still valid data to restore available.
*/
if (embed->objTag.embed_index < embed_list->embed_count)
{
lo_EmbedDataElement* embed_data_list;
PA_LOCK(embed_data_list, lo_EmbedDataElement*,
embed_list->embed_data_list);
embed->objTag.session_data =
embed_data_list[embed->objTag.embed_index].data;
PA_UNLOCK(embed_list->embed_data_list);
}
}
/*
* Put embed onto the embed list and applets into applet list
* for later possible reflection.
*/
{
int32 i, count, *pDoclistCount;
LO_EmbedStruct *prev_embed, *cur_embed;
LO_CommonPluginStruct **ppDoclistList;
doc_lists = lo_GetCurrentDocLists(state);
if( embed->objTag.sub_type == LO_JAVA )
{
cur_embed = (LO_EmbedStruct *)doc_lists->applet_list;
pDoclistCount = &doc_lists->applet_list_count;
ppDoclistList = (LO_CommonPluginStruct **)&doc_lists->applet_list;
}
else
{
cur_embed = doc_lists->embed_list;
pDoclistCount = &doc_lists->embed_list_count;
ppDoclistList = (LO_CommonPluginStruct **)&doc_lists->embed_list;
}
if (state->in_relayout) {
/*
* In the interest of changing as little as possible, I'm not
* going to change the embed_list to be in the order of layout
* (it is currently in reverse order). Instead, we do what
* everybody else does - iterate till the end of the list to get
* find an element with the correct index.
* If we're in table relayout, we need to replace the element
* of the same index in this list with the new layout element
* to prevent multiple reflection.
*/
count = 0;
/* reverse order... */
prev_embed = NULL;
while (cur_embed) {
cur_embed = cur_embed->nextEmbed;
count++;
}
for (i = count-1; i >= 0; i--) {
if (i == *pDoclistCount) {
/* Copy over the mocha object (it might not exist) */
embed->objTag.mocha_object = cur_embed->objTag.mocha_object;
embed->nextEmbed = cur_embed->nextEmbed;
/* Replace the old embed with the new one */
if (prev_embed == NULL)
*ppDoclistList = (LO_CommonPluginStruct *)embed;
else
prev_embed->nextEmbed = embed;
(*pDoclistCount)++;
break;
}
prev_embed = cur_embed;
cur_embed = cur_embed->nextEmbed;
}
}
else {
embed->nextEmbed = (LO_EmbedStruct *)*ppDoclistList;
*ppDoclistList = (LO_CommonPluginStruct *)embed;
(*pDoclistCount)++;
}
}
/*
* Plug-ins won't be happy if we use a special colormap.
*/
#ifndef M12N /* XXXM12N Fix me, this has gone away. Sets
cx->colorSpace->install_colormap_forbidden*/
IL_UseDefaultColormapThisPage(context);
#endif /* M12N */
/* Create an initially hidden layer for this plugin to inhabit. If the plugin is
a windowless plugin, this will later become a "normal" layer. If the plugin is
a windowed plugin, the layer will become a cutout layer. */
embed->objTag.layer =
lo_CreateEmbeddedObjectLayer(context, state, (LO_Element*)embed);
/*
* Have the front end fetch this embed data, and tell us
* the embed's dimensions if it knows them.
*/
FE_GetEmbedSize(context, embed, state->top_state->force_reload);
/*
* Hidden embeds always have 0 width and height
*/
if (embed->objTag.ele_attrmask & LO_ELE_HIDDEN)
{
embed->objTag.width = 0;
embed->objTag.height = 0;
}
/*
* We may have to block on this embed until later
* when the front end can give us the width and height.
* Never block on hidden embeds.
*/
if (((embed->objTag.width == 0)||(embed->objTag.height == 0))&&
((embed->objTag.ele_attrmask & LO_ELE_HIDDEN) == 0))
{
state->top_state->layout_blocking_element = (LO_Element *)embed;
}
else
{
lo_FinishEmbed(context, state, embed);
}
}
void
lo_FinishEmbed(MWContext *context, lo_DocState *state, LO_EmbedStruct *embed)
{
int32 baseline_inc;
int32 line_inc;
int32 embed_height, embed_width;
/*
* Eventually this will never happen since we always
* have dims here from either the embed tag itself or the
* front end.
* Hidden embeds are supposed to have 0 width and height.
*/
if ((embed->objTag.ele_attrmask & LO_ELE_HIDDEN) == 0)
{
if (embed->objTag.width == 0)
{
embed->objTag.width = EMBED_DEF_DIM;
}
if (embed->objTag.height == 0)
{
embed->objTag.height = EMBED_DEF_DIM;
}
}
embed_width = embed->objTag.width + (2 * embed->objTag.border_width) +
(2 * embed->objTag.border_horiz_space);
embed_height = embed->objTag.height + (2 * embed->objTag.border_width) +
(2 * embed->objTag.border_vert_space);
/*
* SEVERE FLOW BREAK! This may be a floating embed,
* which means at this point we go do something completely
* different.
*/
if (embed->objTag.ele_attrmask & LO_ELE_FLOATING)
{
embed->objTag.x_offset += (int16)embed->objTag.border_horiz_space;
embed->objTag.y_offset += (int32)embed->objTag.border_vert_space;
/*
* Insert this element into the float list.
*/
embed->objTag.next = state->float_list;
state->float_list = (LO_Element *)embed;
lo_AppendFloatInLineList(context, state, (LO_Element*)embed, NULL);
lo_LayoutFloatEmbed(context, state, embed, TRUE);
}
else
{
/*
* Figure out how to align this embed.
* baseline_inc is how much to increase the baseline
* of previous element of this line. line_inc is how
* much to increase the line height below the baseline.
*/
baseline_inc = 0;
line_inc = 0;
/*
* If we are at the beginning of a line, with no baseline,
* we first set baseline and line_height based on the current
* font, then place the embed.
*/
if (state->baseline == 0)
{
state->baseline = 0;
}
embed->objTag.x_offset += (int16)embed->objTag.border_horiz_space;
embed->objTag.y_offset += (int32)embed->objTag.border_vert_space;
lo_LayoutInflowEmbed(context, state, embed, FALSE, &line_inc, &baseline_inc);
lo_AppendToLineList(context, state,
(LO_Element *)embed, baseline_inc);
lo_UpdateStateAfterEmbedLayout(state, embed, line_inc, baseline_inc);
}
}
void
lo_RelayoutEmbed ( MWContext *context, lo_DocState *state, LO_EmbedStruct * embed, PA_Tag * tag )
{
lo_DocLists *doc_lists;
lo_PreLayoutTag ( context, state, tag );
if (state->top_state->out_of_memory)
{
return;
}
LO_LockLayout();
/*
* Fill in the embed structure with default data
*/
embed->objTag.type = LO_EMBED;
embed->objTag.ele_id = NEXT_ELEMENT;
embed->objTag.x = state->x;
embed->objTag.x_offset = 0;
embed->objTag.y = state->y;
embed->objTag.y_offset = 0;
embed->objTag.next = NULL;
embed->objTag.prev = NULL;
embed->objTag.line_height = state->line_height;
/*
* Assign a unique index for this object
* and increment the master index.
*/
embed->objTag.embed_index = state->top_state->embed_count++;
/*
* Since we saved the embed_list_count during table relayout,
* we increment it as if we were reprocessing the EMBED tag.
*/
doc_lists = lo_GetCurrentDocLists(state);
doc_lists->embed_list_count++;
/*
* Plug-ins won't be happy if we use a special colormap.
*/
#ifndef M12N /* XXXM12N Fix me, this has gone away. Sets
cx->colorSpace->install_colormap_forbidden*/
IL_UseDefaultColormapThisPage(context);
#endif /* M12N */
/*
* I don't think we need to worry about blocking at all since we're in
* relayout, but I'd rather be safe.
*/
if (((embed->objTag.width == 0)||(embed->objTag.height == 0))&&
((embed->objTag.ele_attrmask & LO_ELE_HIDDEN) == 0))
{
state->top_state->layout_blocking_element = (LO_Element *)embed;
}
else
{
lo_FinishEmbed(context, state, embed);
}
lo_PostLayoutTag ( context, state, tag, FALSE );
LO_UnlockLayout();
}
void
LO_CopySavedEmbedData(MWContext *context, SHIST_SavedData *saved_data)
{
int32 doc_id;
lo_TopState *top_state;
lo_DocState *state;
lo_SavedEmbedListData *embed_list, *new_embed_list;
lo_EmbedDataElement *embed_data_list, *new_embed_data_list;
PA_Block old_embed_data_list = NULL;
int32 old_count = 0;
int32 index;
/*
* Get the state, so we can access the savedEmbedListData
* list for this document.
*/
doc_id = XP_DOCID(context);
top_state = lo_FetchTopState(doc_id);
if ((top_state != NULL)&&(top_state->doc_state != NULL))
state = top_state->doc_state;
else
return;
embed_list = state->top_state->savedData.EmbedList;
if (embed_list == NULL || embed_list->embed_data_list == NULL)
return;
PA_LOCK(embed_data_list, lo_EmbedDataElement*, embed_list->embed_data_list);
if (saved_data->EmbedList == NULL)
saved_data->EmbedList = XP_NEW_ZAP(lo_SavedEmbedListData);
new_embed_list = saved_data->EmbedList;
if (new_embed_list->embed_data_list == NULL)
{
/* Allocate new array */
new_embed_list->embed_data_list = PA_ALLOC(
embed_list->embed_count * sizeof(lo_EmbedDataElement));
}
else if (new_embed_list->embed_count < embed_list->embed_count)
{
/* Enlarge existing array */
old_embed_data_list = new_embed_list->embed_data_list;
old_count = new_embed_list->embed_count;
new_embed_list->embed_data_list = PA_REALLOC(
new_embed_list->embed_data_list,
(embed_list->embed_count * sizeof(lo_EmbedDataElement)));
}
/*
* If we ran out of memory to grow the array.
*/
if (new_embed_list->embed_data_list == NULL)
{
new_embed_list->embed_data_list = old_embed_data_list;
new_embed_list->embed_count = old_count;
state->top_state->out_of_memory = TRUE;
return;
}
/*
* Copy all the elements from the old array to the new one.
*/
PA_LOCK(new_embed_data_list, lo_EmbedDataElement*, new_embed_list->embed_data_list);
for (index = 0; index < embed_list->embed_count; index++)
new_embed_data_list[index] = embed_data_list[index];
new_embed_list->embed_count = embed_list->embed_count;
PA_UNLOCK(new_embed_list->embed_data_list);
PA_UNLOCK(embed_list->embed_data_list);
}
void
LO_AddEmbedData(MWContext *context, LO_EmbedStruct* embed, void *session_data)
{
lo_AddEmbedData(context, session_data, NPL_DeleteSessionData, embed->objTag.embed_index);
}
void
lo_FillInEmbedGeometry(lo_DocState *state,
LO_EmbedStruct *embed,
Bool relayout)
{
int32 doc_width;
if (relayout == TRUE)
{
embed->objTag.ele_id = NEXT_ELEMENT;
}
embed->objTag.x = state->x;
embed->objTag.y = state->y;
doc_width = state->right_margin - state->left_margin;
/*
* Get the width parameter, in absolute or percentage.
* If percentage, make it absolute.
*/
if (embed->objTag.percent_width > 0) {
int32 val = embed->objTag.percent_width;
if (state->allow_percent_width == FALSE) {
val = 0;
}
else {
val = doc_width * val / 100;
}
embed->objTag.width = val;
}
/* Set embed->objTag.height if embed has a % height specified */
if (embed->objTag.percent_height > 0) {
int32 val = embed->objTag.percent_height;
if (state->allow_percent_height == FALSE) {
val = 0;
}
else {
val = state->win_height * val / 100;
}
embed->objTag.height = val;
}
}
void
lo_LayoutInflowEmbed(MWContext *context,
lo_DocState *state,
LO_EmbedStruct *embed,
Bool inRelayout,
int32 *line_inc,
int32 *baseline_inc)
{
int32 embed_width, embed_height;
Bool line_break;
PA_Block buff;
char *str;
LO_TextStruct tmp_text;
LO_TextInfo text_info;
lo_TopState *top_state;
top_state = state->top_state;
/*
* All this work is to get the text_info filled in for the current
* font in the font stack. Yuck, there must be a better way.
*/
memset (&tmp_text, 0, sizeof (tmp_text));
buff = PA_ALLOC(1);
if (buff == NULL)
{
top_state->out_of_memory = TRUE;
return;
}
PA_LOCK(str, char *, buff);
str[0] = ' ';
PA_UNLOCK(buff);
tmp_text.text = buff;
tmp_text.text_len = 1;
tmp_text.text_attr =
state->font_stack->text_attr;
FE_GetTextInfo(context, &tmp_text, &text_info);
PA_FREE(buff);
embed_width = embed->objTag.width + (2 * embed->objTag.border_width) +
(2 * embed->objTag.border_horiz_space);
embed_height = embed->objTag.height + (2 * embed->objTag.border_width) +
(2 * embed->objTag.border_vert_space);
/*
* Will this embed make the line too wide.
*/
if ((state->x + embed_width) > state->right_margin)
{
line_break = TRUE;
}
else
{
line_break = FALSE;
}
/*
* if we are at the beginning of the line. There is
* no point in breaking, we are just too wide.
* Also don't break in unwrapped preformatted text.
* Also can't break inside a NOBR section.
*/
if ((state->at_begin_line != FALSE)||
(state->preformatted == PRE_TEXT_YES)||
(state->breakable == FALSE))
{
line_break = FALSE;
}
/*
* break on the embed if we have
* a break.
*/
if (line_break != FALSE)
{
/*
* We need to make the elements sequential, linefeed
* before embed.
*/
top_state->element_id = embed->objTag.ele_id;
if (!inRelayout)
{
lo_SoftLineBreak(context, state, TRUE);
}
else
{
lo_rl_AddSoftBreakAndFlushLine(context, state);
}
embed->objTag.x = state->x;
embed->objTag.y = state->y;
embed->objTag.ele_id = NEXT_ELEMENT;
}
lo_CalcAlignOffsets(state, &text_info, (intn)embed->objTag.alignment,
embed_width, embed_height,
&embed->objTag.x_offset, &embed->objTag.y_offset, line_inc, baseline_inc);
}
void
lo_LayoutFloatEmbed(MWContext *context,
lo_DocState *state,
LO_EmbedStruct *embed,
Bool updateFE )
{
int32 embed_width;
embed_width = embed->objTag.width + (2 * embed->objTag.border_width) +
(2 * embed->objTag.border_horiz_space);
if (embed->objTag.alignment == LO_ALIGN_RIGHT)
{
if (state->right_margin_stack == NULL)
{
embed->objTag.x = state->right_margin - embed_width;
}
else
{
embed->objTag.x = state->right_margin_stack->margin -
embed_width;
}
if (embed->objTag.x < 0)
{
embed->objTag.x = 0;
}
}
else
{
embed->objTag.x = state->left_margin;
}
embed->objTag.y = -1;
lo_AddMarginStack(state, embed->objTag.x, embed->objTag.y,
embed->objTag.width, embed->objTag.height,
embed->objTag.border_width,
embed->objTag.border_vert_space, embed->objTag.border_horiz_space,
(intn)embed->objTag.alignment);
if (state->at_begin_line != FALSE)
{
lo_FindLineMargins(context, state, updateFE);
state->x = state->left_margin;
}
}
void
lo_UpdateStateAfterEmbedLayout(lo_DocState *state,
LO_EmbedStruct *embed,
int32 line_inc,
int32 baseline_inc )
{
int32 embed_width;
int32 x, y;
embed_width = embed->objTag.width + (2 * embed->objTag.border_width) +
(2 * embed->objTag.border_horiz_space);
state->baseline += (intn) baseline_inc;
state->line_height += (intn) (baseline_inc + line_inc);
/*
* Clean up state
*/
state->x = state->x + embed->objTag.x_offset +
embed_width - embed->objTag.border_horiz_space;
state->linefeed_state = 0;
state->at_begin_line = FALSE;
state->trailing_space = FALSE;
state->cur_ele_type = LO_EMBED;
/* Determine the new position of the layer. */
x = embed->objTag.x + embed->objTag.x_offset + embed->objTag.border_width;
y = embed->objTag.y + embed->objTag.y_offset + embed->objTag.border_width;
/* Move layer to new position */
CL_MoveLayer(embed->objTag.layer, x, y);
}
void
LO_SetEmbedSize( MWContext *context, LO_EmbedStruct *embed, int32 width, int32 height )
{
/* For now, just setting the embed's dimensions. Do we need to lock/unlock layout here? */
embed->objTag.width = width;
embed->objTag.height = height;
}
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