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https://github.com/netsurf-browser/netsurf
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Treeview: Create and destroy a textarea for search.
This commit is contained in:
Michael Drake
parent
1420d01a21
commit
3d2adf4330
@ -207,6 +207,15 @@ struct treeview_edit {
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};
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/**
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* Treeview search box details
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*/
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struct treeview_search {
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struct textarea *textarea; /**< Search box. Never NULL. */
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bool active; /**< Whether the search box is active */
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};
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/**
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* The treeview context
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*/
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@ -225,6 +234,8 @@ struct treeview {
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struct treeview_move move; /**< Move drag details */
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struct treeview_edit edit; /**< Edit details */
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struct treeview_search search; /**< Treeview search box */
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const struct treeview_callback_table *callbacks; /**< For node events */
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const struct core_window_callback_table *cw_t; /**< Window cb table */
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@ -1504,6 +1515,94 @@ treeview_delete_node(treeview *tree,
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}
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/**
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* Helper to create a textarea.
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*
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* \param[in] tree The treeview we're creating the textarea for.
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* \param[in] width The width of the textarea.
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* \param[in] height The height of the textarea.
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* \param[in] border The border colour to use.
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* \param[in] background The background colour to use.
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* \param[in] foreground The foreground colour to use.
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* \param[in] text The text style to use for the text area.
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* \param[in] ta_callback The textarea callback function to give the textarea.
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* \return the textarea pointer on success, or NULL on failure.
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*/
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static struct textarea *treeview__create_textarea(
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treeview *tree,
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int width,
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int height,
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colour border,
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colour background,
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colour foreground,
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plot_font_style_t text,
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textarea_client_callback ta_callback)
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{
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/* Configure the textarea */
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textarea_flags ta_flags = TEXTAREA_INTERNAL_CARET;
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textarea_setup ta_setup = {
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.text = text,
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.width = width,
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.height = height,
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.pad_top = 0,
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.pad_left = 2,
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.pad_right = 2,
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.pad_bottom = 0,
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.border_width = 1,
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.border_col = border,
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.selected_bg = foreground,
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.selected_text = background,
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};
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ta_setup.text.foreground = foreground;
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ta_setup.text.background = background;
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/* Create text area */
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return textarea_create(ta_flags, &ta_setup, ta_callback, tree);
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}
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/**
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* Callback for textarea_create, in desktop/treeview.h
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*
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* \param data treeview context
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* \param msg textarea message
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*/
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static void treeview_textarea_search_callback(void *data,
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struct textarea_msg *msg)
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{
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treeview *tree = data;
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struct rect *r;
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switch (msg->type) {
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case TEXTAREA_MSG_DRAG_REPORT:
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if (msg->data.drag == TEXTAREA_DRAG_NONE) {
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/* Textarea drag finished */
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tree->drag.type = TV_DRAG_NONE;
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} else {
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/* Textarea drag started */
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tree->drag.type = TV_DRAG_SEARCH;
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}
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treeview__cw_drag_status(tree, tree->drag.type);
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break;
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case TEXTAREA_MSG_REDRAW_REQUEST:
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r = &msg->data.redraw;
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r->x0 += tree_g.window_padding + tree_g.icon_size;
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r->y0 += 0;
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r->x1 += 600;
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r->y1 += tree_g.line_height;
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/* Redraw the textarea */
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cw_invalidate_area(tree, r);
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break;
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default:
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break;
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}
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}
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/* Exported interface, documented in treeview.h */
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nserror
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treeview_create(treeview **tree,
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@ -1583,6 +1682,23 @@ treeview_create(treeview **tree,
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(*tree)->edit.textarea = NULL;
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(*tree)->edit.node = NULL;
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if (flags & TREEVIEW_SEARCHABLE) {
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(*tree)->search.textarea = treeview__create_textarea(
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*tree, 600, tree_g.line_height,
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plot_style_even.text.background,
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plot_style_even.text.background,
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plot_style_even.text.foreground,
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plot_style_odd.text,
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treeview_textarea_search_callback);
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if ((*tree)->search.textarea == NULL) {
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treeview_destroy(*tree);
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return NSERROR_NOMEM;
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}
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} else {
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(*tree)->search.textarea = NULL;
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}
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(*tree)->search.active = false;
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(*tree)->flags = flags;
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(*tree)->cw_t = cw_t;
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@ -1640,6 +1756,10 @@ nserror treeview_destroy(treeview *tree)
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}
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free(tree->fields);
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if (tree->search.textarea != NULL) {
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textarea_destroy(tree->search.textarea);
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}
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/* Free treeview */
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free(tree);
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@ -3368,47 +3488,6 @@ static void treeview_textarea_callback(void *data, struct textarea_msg *msg)
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}
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/**
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* Helper to create a textarea.
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*
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* \param[in] tree The treeview we're creating the textarea for.
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* \param[in] width The width of the textarea.
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* \param[in] height The height of the textarea.
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* \param[in] text The text style to use for the text area.
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* \param[in] ta_callback The textarea callback function to give the textarea.
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* \return the textarea pointer on success, or NULL on failure.
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*/
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static struct textarea *treeview_create_textarea(
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treeview *tree,
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int width,
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int height,
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plot_font_style_t text,
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textarea_client_callback ta_callback)
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{
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/* Configure the textarea */
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textarea_flags ta_flags = TEXTAREA_INTERNAL_CARET;
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textarea_setup ta_setup = {
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.text = text,
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.width = width,
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.height = height,
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.pad_top = 0,
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.pad_left = 2,
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.pad_right = 2,
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.pad_bottom = 0,
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.border_width = 1,
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.border_col = 0x000000,
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.selected_bg = 0x000000,
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.selected_text = 0xffffff,
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};
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ta_setup.text.foreground = 0x000000;
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ta_setup.text.background = 0xffffff;
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/* Create text area */
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return textarea_create(ta_flags, &ta_setup, ta_callback, tree);
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}
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/**
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* Start edit of node field, at given y-coord, if editable
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*
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@ -3481,8 +3560,9 @@ treeview_edit_node_at_point(treeview *tree,
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height = tree_g.line_height;
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/* Create text area */
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tree->edit.textarea = treeview_create_textarea(tree, width, height,
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plot_style_odd.text, treeview_textarea_callback);
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tree->edit.textarea = treeview__create_textarea(tree, width, height,
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0x000000, 0xffffff, 0x000000, plot_style_odd.text,
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treeview_textarea_callback);
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if (tree->edit.textarea == NULL) {
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return false;
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}
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