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Diffstat (limited to 'desktop/textarea.c')
-rw-r--r--desktop/textarea.c183
1 files changed, 120 insertions, 63 deletions
diff --git a/desktop/textarea.c b/desktop/textarea.c
index 455e9a4ca..2da2c206b 100644
--- a/desktop/textarea.c
+++ b/desktop/textarea.c
@@ -180,6 +180,7 @@ static bool textarea_select(struct textarea *ta, int c_start, int c_end,
bool force_redraw)
{
int swap;
+ bool pre_existing_selection = (ta->sel_start != -1);
struct textarea_msg msg;
/* Ensure start is the beginning of the selection */
@@ -205,6 +206,24 @@ static bool textarea_select(struct textarea *ta, int c_start, int c_end,
ta->callback(ta->data, &msg);
+ if (!pre_existing_selection && ta->sel_start != -1) {
+ /* Didn't have a selection before, but do now */
+ msg.type = TEXTAREA_MSG_SELECTION_REPORT;
+
+ msg.data.selection.have_selection = true;
+ msg.data.selection.read_only = (ta->flags & TEXTAREA_READONLY);
+
+ ta->callback(ta->data, &msg);
+
+ if (!(ta->flags & TEXTAREA_INTERNAL_CARET)) {
+ /* Caret hidden, and client is responsible */
+ msg.type = TEXTAREA_MSG_CARET_UPDATE;
+ msg.data.caret.type = TEXTAREA_CARET_HIDE;
+
+ ta->callback(ta->data, &msg);
+ }
+ }
+
return true;
}
@@ -438,11 +457,12 @@ static void textarea_scrollbar_callback(void *client_data,
if (!(ta->flags & TEXTAREA_INTERNAL_CARET)) {
/* Tell client where caret should be placed */
msg.ta = ta;
- msg.type = TEXTAREA_MSG_MOVED_CARET;
- msg.data.caret.hidden = false;
- msg.data.caret.x = ta->caret_x - ta->scroll_x;
- msg.data.caret.y = ta->caret_y - ta->scroll_y;
- msg.data.caret.height = ta->line_height;
+ msg.type = TEXTAREA_MSG_CARET_UPDATE;
+ msg.data.caret.type = TEXTAREA_CARET_SET_POS;
+ msg.data.caret.pos.x = ta->caret_x - ta->scroll_x;
+ msg.data.caret.pos.y = ta->caret_y - ta->scroll_y;
+ msg.data.caret.pos.height = ta->line_height;
+ msg.data.caret.pos.clip = NULL;
ta->callback(ta->data, &msg);
}
@@ -497,7 +517,7 @@ static bool textarea_reflow(struct textarea *ta, unsigned int start)
int avail_width;
int h_extent; /* horizontal extent */
int v_extent; /* vertical extent */
- bool restart;
+ bool restart = false;
if (ta->lines == NULL) {
ta->lines =
@@ -781,10 +801,10 @@ static void textarea_get_xy_offset(struct textarea *ta, int x, int y,
line = y / ta->line_height;
- if (line < 0)
- line = 0;
if (ta->line_count - 1 < line)
line = ta->line_count - 1;
+ if (line < 0)
+ line = 0;
/* Get byte position */
nsfont.font_position_in_string(&ta->fstyle,
@@ -798,9 +818,7 @@ static void textarea_get_xy_offset(struct textarea *ta, int x, int y,
* after it. Otherwise, the caret will be placed at the start of the
* following line, which is undesirable.
*/
- if (ta->flags & TEXTAREA_MULTILINE &&
- ta->show->data[ta->lines[line].b_start +
- ta->lines[line].b_length] > 0 &&
+ if (ta->flags & TEXTAREA_MULTILINE && ta->lines[line].b_length > 1 &&
bpos == (unsigned)ta->lines[line].b_length &&
ta->show->data[ta->lines[line].b_start +
ta->lines[line].b_length - 1] == ' ')
@@ -838,9 +856,9 @@ static bool textarea_set_caret_xy(struct textarea *ta, int x, int y)
/**
- * Insert text into the text area
+ * Insert text into the textarea
*
- * \param ta Text area
+ * \param ta Textarea widget
* \param c_index 0-based character index to insert at
* \param text UTF-8 text to insert
* \param b_len Byte length of UTF-8 text
@@ -908,9 +926,9 @@ static inline void textarea_char_to_byte_offset(struct textarea_utf8 *text,
/**
- * Replace text in a text area
+ * Replace text in a textarea
*
- * \param ta Text area
+ * \param ta Textarea widget
* \param start Start character index of replaced section (inclusive)
* \param end End character index of replaced section (exclusive)
* \param rep Replacement UTF-8 text to insert
@@ -1421,11 +1439,12 @@ bool textarea_set_caret(struct textarea *ta, int caret)
if (!(ta->flags & TEXTAREA_INTERNAL_CARET)) {
/* Tell client where caret should be placed */
msg.ta = ta;
- msg.type = TEXTAREA_MSG_MOVED_CARET;
- msg.data.caret.hidden = false;
- msg.data.caret.x = x - ta->scroll_x;
- msg.data.caret.y = y - ta->scroll_y;
- msg.data.caret.height = ta->line_height;
+ msg.type = TEXTAREA_MSG_CARET_UPDATE;
+ msg.data.caret.type = TEXTAREA_CARET_SET_POS;
+ msg.data.caret.pos.x = x - ta->scroll_x;
+ msg.data.caret.pos.y = y - ta->scroll_y;
+ msg.data.caret.pos.height = ta->line_height;
+ msg.data.caret.pos.clip = NULL;
ta->callback(ta->data, &msg);
}
@@ -1433,8 +1452,8 @@ bool textarea_set_caret(struct textarea *ta, int caret)
} else if (!(ta->flags & TEXTAREA_INTERNAL_CARET)) {
/* Caret hidden, and client is responsible: tell client */
msg.ta = ta;
- msg.type = TEXTAREA_MSG_MOVED_CARET;
- msg.data.caret.hidden = true;
+ msg.type = TEXTAREA_MSG_CARET_UPDATE;
+ msg.data.caret.type = TEXTAREA_CARET_HIDE;
ta->callback(ta->data, &msg);
}
@@ -1778,8 +1797,7 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
return false;
caret = ta->sel_start + 1;
- ta->sel_start = ta->sel_end = -1;
- redraw = true;
+ textarea_clear_selection(ta);
} else {
if (!textarea_replace_text(ta,
caret, caret,
@@ -1792,11 +1810,8 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
} else switch (key) {
case KEY_SELECT_ALL:
caret = ta->text.utf8_len;
-
- ta->sel_start = 0;
- ta->sel_end = ta->text.utf8_len;
- redraw = true;
- break;
+ textarea_select(ta, 0, ta->text.utf8_len, true);
+ return true;
case KEY_COPY_SELECTION:
if (ta->sel_start != -1) {
if (!textarea_replace_text(ta,
@@ -1816,15 +1831,15 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
return false;
caret = ta->sel_start;
- ta->sel_start = ta->sel_end = -1;
+ textarea_clear_selection(ta);
} else if (caret > 0) {
if (!textarea_replace_text(ta,
caret - 1,
caret, "", 0, false))
return false;
caret--;
+ redraw = true;
}
- redraw = true;
break;
case KEY_CR:
case KEY_NL:
@@ -1838,15 +1853,15 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
return false;
caret = ta->sel_start + 1;
- ta->sel_start = ta->sel_end = -1;
+ textarea_clear_selection(ta);
} else {
if (!textarea_replace_text(ta,
caret, caret,
"\n", 1, false))
return false;
caret++;
+ redraw = true;
}
- redraw = true;
break;
case KEY_DELETE_LINE:
if (readonly)
@@ -1856,7 +1871,7 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
ta->sel_start,
ta->sel_end, "", 0, false))
return false;
- ta->sel_start = ta->sel_end = -1;
+ textarea_clear_selection(ta);
} else {
if (ta->lines[line].b_length != 0) {
/* Delete line */
@@ -1877,8 +1892,8 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
false))
return false;
}
+ redraw = true;
}
- redraw = true;
break;
case KEY_PASTE:
{
@@ -1903,7 +1918,7 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
return false;
caret = ta->sel_start + clipboard_chars;
- ta->sel_start = ta->sel_end = -1;
+ textarea_clear_selection(ta);
} else {
if (!textarea_replace_text(ta,
caret, caret,
@@ -1911,8 +1926,8 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
false))
return false;
caret += clipboard_chars;
+ redraw = true;
}
- redraw = true;
free(clipboard);
}
@@ -1927,8 +1942,7 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
return false;
caret = ta->sel_start;
- ta->sel_start = ta->sel_end = -1;
- redraw = true;
+ textarea_clear_selection(ta);
}
break;
case KEY_ESCAPE:
@@ -1941,8 +1955,7 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
if (caret > 0)
caret--;
if (ta->sel_start != -1) {
- ta->sel_start = ta->sel_end = -1;
- redraw = true;
+ textarea_clear_selection(ta);
}
break;
case KEY_RIGHT:
@@ -1951,8 +1964,7 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
if (caret < ta->text.utf8_len)
caret++;
if (ta->sel_start != -1) {
- ta->sel_start = ta->sel_end = -1;
- redraw = true;
+ textarea_clear_selection(ta);
}
break;
case KEY_PAGE_UP:
@@ -1970,8 +1982,7 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
if (readonly)
break;
if (ta->sel_start != -1) {
- ta->sel_start = ta->sel_end = -1;
- redraw = true;
+ textarea_clear_selection(ta);
}
if (!(ta->flags & TEXTAREA_MULTILINE))
break;
@@ -2012,16 +2023,14 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
/* -1 because one line is added in KEY_DOWN */
line = ta->caret_pos.line + (ta->vis_height +
ta->line_height - 1) /
- ta->line_height
- - 1;
+ ta->line_height - 1;
}
/* fall through */
case KEY_DOWN:
if (readonly)
break;
if (ta->sel_start != -1) {
- ta->sel_start = ta->sel_end = -1;
- redraw = true;
+ textarea_clear_selection(ta);
}
if (!(ta->flags & TEXTAREA_MULTILINE))
break;
@@ -2065,8 +2074,7 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
return false;
caret = ta->sel_start;
- ta->sel_start = ta->sel_end = -1;
- redraw = true;
+ textarea_clear_selection(ta);
} else {
if (caret < ta->text.utf8_len) {
if (!textarea_replace_text(ta,
@@ -2082,8 +2090,7 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
break;
caret -= ta->caret_pos.char_off;
if (ta->sel_start != -1) {
- ta->sel_start = ta->sel_end = -1;
- redraw = true;
+ textarea_clear_selection(ta);
}
break;
case KEY_LINE_END:
@@ -2099,8 +2106,7 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
- 1] == ' ')
caret--;
if (ta->sel_start != -1) {
- ta->sel_start = ta->sel_end = -1;
- redraw = true;
+ textarea_clear_selection(ta);
}
break;
case KEY_TEXT_START:
@@ -2108,8 +2114,7 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
break;
caret = 0;
if (ta->sel_start != -1) {
- ta->sel_start = ta->sel_end = -1;
- redraw = true;
+ textarea_clear_selection(ta);
}
break;
case KEY_TEXT_END:
@@ -2117,8 +2122,7 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
break;
caret = ta->text.utf8_len;
if (ta->sel_start != -1) {
- ta->sel_start = ta->sel_end = -1;
- redraw = true;
+ textarea_clear_selection(ta);
}
break;
case KEY_WORD_LEFT:
@@ -2132,7 +2136,7 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
ta->sel_start,
ta->sel_end, "", 0, false))
return false;
- ta->sel_start = ta->sel_end = -1;
+ textarea_clear_selection(ta);
} else {
b_off = ta->lines[line].b_start;
b_len = ta->lines[line].b_length;
@@ -2142,8 +2146,8 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
if (!textarea_replace_text(ta, caret,
caret + l_len, "", 0, false))
return false;
+ redraw = true;
}
- redraw = true;
break;
case KEY_DELETE_LINE_START:
if (readonly)
@@ -2153,15 +2157,15 @@ bool textarea_keypress(struct textarea *ta, uint32_t key)
ta->sel_start,
ta->sel_end, "", 0, false))
return false;
- ta->sel_start = ta->sel_end = -1;
+ textarea_clear_selection(ta);
} else {
if (!textarea_replace_text(ta,
caret - ta->caret_pos.char_off,
caret, "", 0, false))
return false;
caret -= ta->caret_pos.char_off;
+ redraw = true;
}
- redraw = true;
break;
default:
return false;
@@ -2346,6 +2350,7 @@ bool textarea_clear_selection(struct textarea *ta)
/* No selection to clear */
return false;
+ /* Clear selection and redraw */
ta->sel_start = ta->sel_end = -1;
msg.ta = ta;
@@ -2357,11 +2362,63 @@ bool textarea_clear_selection(struct textarea *ta)
ta->callback(ta->data, &msg);
+ /* No more selection */
+ msg.type = TEXTAREA_MSG_SELECTION_REPORT;
+
+ msg.data.selection.have_selection = false;
+ msg.data.selection.read_only = (ta->flags & TEXTAREA_READONLY);
+
+ ta->callback(ta->data, &msg);
+
+ if (!(ta->flags & TEXTAREA_INTERNAL_CARET)) {
+ /* Tell client where caret should be placed */
+ msg.ta = ta;
+ msg.type = TEXTAREA_MSG_CARET_UPDATE;
+ msg.data.caret.type = TEXTAREA_CARET_SET_POS;
+ msg.data.caret.pos.x = ta->caret_x - ta->scroll_x;
+ msg.data.caret.pos.y = ta->caret_y - ta->scroll_y;
+ msg.data.caret.pos.height = ta->line_height;
+ msg.data.caret.pos.clip = NULL;
+
+ ta->callback(ta->data, &msg);
+ }
+
return true;
}
/* exported interface, documented in textarea.h */
+char *textarea_get_selection(struct textarea *ta)
+{
+ char *ret;
+ size_t b_start, b_end, b_len;
+
+ if (ta->sel_start == -1)
+ /* No selection get */
+ return NULL;
+
+ textarea_char_to_byte_offset(ta->show, ta->sel_start, ta->sel_end,
+ &b_start, &b_end);
+
+ b_len = b_end - b_start;
+
+ if (b_len == 0)
+ /* No selection get */
+ return NULL;
+
+ ret = malloc(b_len + 1); /* Add space for '\0' */
+ if (ret == NULL)
+ /* Can't get selection; no memory */
+ return NULL;
+
+ memcpy(ret, ta->show->data + b_start, b_len);
+ ret[b_len] = '\0';
+
+ return ret;
+}
+
+
+/* exported interface, documented in textarea.h */
void textarea_get_dimensions(struct textarea *ta, int *width, int *height)
{
if (width != NULL)
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-23 07:33:39 +0000