2 * @defgroup Hover Hover
4 * @image html img/widget/hover/preview-00.png
5 * @image latex img/widget/hover/preview-00.eps
7 * A Hover object will hover over its @p parent object at the @p target
8 * location. Anything in the background will be given a darker coloring to
9 * indicate that the hover object is on top (at the default theme). When the
10 * hover is clicked it is dismissed(hidden), if the contents of the hover are
11 * clicked that @b doesn't cause the hover to be dismissed.
13 * A Hover object has two parents. One parent that owns it during creation
14 * and the other parent being the one over which the hover object spans.
17 * @note The hover object will take up the entire space of @p target
20 * Elementary has the following styles for the hover widget:
24 * @li hoversel_vertical
26 * The following are the available position for content:
38 * Signals that you can add callbacks for are:
39 * @li "clicked" - the user clicked the empty space in the hover to dismiss
40 * @li "smart,changed" - a content object placed under the "smart"
41 * policy was replaced to a new slot direction.
43 * See @ref tutorial_hover for more information.
49 ELM_HOVER_AXIS_NONE, /**< ELM_HOVER_AXIS_NONE -- no prefered orientation */
50 ELM_HOVER_AXIS_HORIZONTAL, /**< ELM_HOVER_AXIS_HORIZONTAL -- horizontal */
51 ELM_HOVER_AXIS_VERTICAL, /**< ELM_HOVER_AXIS_VERTICAL -- vertical */
52 ELM_HOVER_AXIS_BOTH /**< ELM_HOVER_AXIS_BOTH -- both */
56 * @brief Adds a hover object to @p parent
58 * @param parent The parent object
59 * @return The hover object or NULL if one could not be created
61 EAPI Evas_Object *elm_hover_add(Evas_Object *parent);
64 * @brief Sets the target object for the hover.
66 * @param obj The hover object
67 * @param target The object to center the hover onto.
69 * This function will cause the hover to be centered on the target object.
71 EAPI void elm_hover_target_set(Evas_Object *obj, Evas_Object *target);
74 * @brief Gets the target object for the hover.
76 * @param obj The hover object
77 * @return The target object for the hover.
79 * @see elm_hover_target_set()
81 EAPI Evas_Object *elm_hover_target_get(const Evas_Object *obj);
84 * @brief Sets the parent object for the hover.
86 * @param obj The hover object
87 * @param parent The object to locate the hover over.
89 * This function will cause the hover to take up the entire space that the
90 * parent object fills.
92 EAPI void elm_hover_parent_set(Evas_Object *obj, Evas_Object *parent);
95 * @brief Gets the parent object for the hover.
97 * @param obj The hover object
98 * @return The parent object to locate the hover over.
100 * @see elm_hover_parent_set()
102 EAPI Evas_Object *elm_hover_parent_get(const Evas_Object *obj);
105 * @brief Sets the content of the hover object and the direction in which it
108 * @param obj The hover object
109 * @param swallow The direction that the object will be displayed
110 * at. Accepted values are "left", "top-left", "top", "top-right",
111 * "right", "bottom-right", "bottom", "bottom-left", "middle" and
113 * @param content The content to place at @p swallow
115 * Once the content object is set for a given direction, a previously
116 * set one (on the same direction) will be deleted. If you want to
117 * keep that old content object, use the elm_hover_content_unset()
120 * All directions may have contents at the same time, except for
121 * "smart". This is a special placement hint and its use case
122 * independs of the calculations coming from
123 * elm_hover_best_content_location_get(). Its use is for cases when
124 * one desires only one hover content, but with a dynamic special
125 * placement within the hover area. The content's geometry, whenever
126 * it changes, will be used to decide on a best location, not
127 * extrapolating the hover's parent object view to show it in (still
128 * being the hover's target determinant of its medium part -- move and
129 * resize it to simulate finger sizes, for example). If one of the
130 * directions other than "smart" are used, a previously content set
131 * using it will be deleted, and vice-versa.
133 EAPI void elm_hover_content_set(Evas_Object *obj, const char *swallow, Evas_Object *content);
136 * @brief Get the content of the hover object, in a given direction.
138 * Return the content object which was set for this widget in the
139 * @p swallow direction.
141 * @param obj The hover object
142 * @param swallow The direction that the object was display at.
143 * @return The content that was being used
145 * @see elm_hover_content_set()
147 EAPI Evas_Object *elm_hover_content_get(const Evas_Object *obj, const char *swallow);
150 * @brief Unset the content of the hover object, in a given direction.
152 * Unparent and return the content object set at @p swallow direction.
154 * @param obj The hover object
155 * @param swallow The direction that the object was display at.
156 * @return The content that was being used.
158 * @see elm_hover_content_set()
160 EAPI Evas_Object *elm_hover_content_unset(Evas_Object *obj, const char *swallow);
163 * @brief Returns the best swallow location for content in the hover.
165 * @param obj The hover object
166 * @param pref_axis The preferred orientation axis for the hover object to use
167 * @return The edje location to place content into the hover or @c
170 * Best is defined here as the location at which there is the most available
173 * @p pref_axis may be one of
174 * - @c ELM_HOVER_AXIS_NONE -- no prefered orientation
175 * - @c ELM_HOVER_AXIS_HORIZONTAL -- horizontal
176 * - @c ELM_HOVER_AXIS_VERTICAL -- vertical
177 * - @c ELM_HOVER_AXIS_BOTH -- both
179 * If ELM_HOVER_AXIS_HORIZONTAL is choosen the returned position will
180 * nescessarily be along the horizontal axis("left" or "right"). If
181 * ELM_HOVER_AXIS_VERTICAL is choosen the returned position will nescessarily
182 * be along the vertical axis("top" or "bottom"). Chossing
183 * ELM_HOVER_AXIS_BOTH or ELM_HOVER_AXIS_NONE has the same effect and the
184 * returned position may be in either axis.
186 * @see elm_hover_content_set()
188 EAPI const char *elm_hover_best_content_location_get(const Evas_Object *obj, Elm_Hover_Axis pref_axis);