export entire TextView widget reference to the Search component

src/app/browser/window/tab/item/page.rs

@@ -575,7 +575,7 @@ impl Page {
                                                             };
 
                                                             // Update `find` model with new buffer
-                                                            search.update(Some(text_widget.buffer));
+                                                            search.update(Some(text_widget.text_view));
 
                                                             // Update page meta
                                                             meta.set_status(Status::Success)

src/app/browser/window/tab/item/page/content/text.rs

@@ -7,8 +7,8 @@ use source::Source;
 use super::{BrowserAction, TabAction, WindowAction};
 use gtk::{
     glib::Uri,
-    prelude::{BoxExt, TextViewExt},
-    Box, Orientation, ScrolledWindow, TextBuffer,
+    prelude::{BoxExt, Cast},
+    Box, Orientation, ScrolledWindow, TextView,
 };
 use std::rc::Rc;
 
@@ -17,7 +17,7 @@ pub struct Meta {
 } // @TODO move to separated mod
 
 pub struct Text {
-    pub buffer: TextBuffer,
+    pub text_view: TextView,
     pub g_box: Box,
     pub meta: Meta,
 }
@@ -91,7 +91,7 @@ impl Text {
         });*/
 
         Self {
-            buffer: gemini.reader.widget.text_view.buffer(),
+            text_view: gemini.reader.widget.text_view.clone().upcast::<TextView>(),
             meta: Meta {
                 title: gemini.reader.title.clone(),
             },
@@ -108,7 +108,7 @@ impl Text {
         g_box.append(&ScrolledWindow::builder().child(&source.text_view).build());
 
         Self {
-            buffer: source.text_view.buffer(),
+            text_view: source.text_view.upcast::<TextView>(),
             meta: Meta { title: None },
             g_box,
         }

src/app/browser/window/tab/item/page/search.rs

@@ -1,19 +1,19 @@
-mod buffer;
 mod form;
 mod placeholder;
+mod subject;
 
-use buffer::Buffer;
 use form::Form;
 use placeholder::Placeholder;
+use subject::Subject;
 
 use gtk::{
     prelude::{BoxExt, WidgetExt},
-    Align, Box, Orientation, TextBuffer,
+    Align, Box, Orientation, TextBuffer, TextView,
 };
 use std::{cell::RefCell, rc::Rc};
 
 pub struct Search {
-    buffer: Rc<RefCell<Option<Buffer>>>,
+    subject: Rc<RefCell<Option<Subject>>>,
     pub form: Rc<Form>,
     pub placeholder: Rc<Placeholder>,
     pub g_box: Box,
@@ -25,8 +25,8 @@ impl Search {
     /// Create new `Self`
     pub fn new() -> Self {
         // Init components
-        let buffer = Rc::new(RefCell::new(None));
-        let form = Rc::new(Form::new(&buffer));
+        let subject = Rc::new(RefCell::new(None));
+        let form = Rc::new(Form::new(&subject));
         let placeholder = Rc::new(Placeholder::new());
 
         // Init main container
@@ -42,7 +42,7 @@ impl Search {
 
         // Done
         Self {
-            buffer,
+            subject,
             form,
             g_box,
             placeholder,
@@ -52,7 +52,7 @@ impl Search {
     // Actions
 
     pub fn show(&self) {
-        if self.buffer.borrow().is_some() {
+        if self.subject.borrow().is_some() {
             self.form.show();
             self.placeholder.hide();
         } else {
@@ -74,9 +74,10 @@ impl Search {
         }
     }
 
-    pub fn update(&self, text_buffer: Option<TextBuffer>) {
-        self.buffer.replace(match text_buffer {
-            Some(buffer) => Some(Buffer::new(buffer)),
+    /// * currently supports [TextView](https://docs.gtk.org/gtk4/class.TextView.html) only
+    pub fn update(&self, text_view: Option<TextView>) {
+        self.subject.replace(match text_view {
+            Some(subject) => Some(Subject::new(subject)),
             None => None,
         });
     }

src/app/browser/window/tab/item/page/search/form.rs

@@ -3,12 +3,14 @@ mod input;
 mod match_case;
 mod navigation;
 
-use super::Buffer;
+use super::Subject;
 use input::Input;
 use navigation::Navigation;
 
 use gtk::{
-    prelude::{BoxExt, ButtonExt, CheckButtonExt, EditableExt, TextBufferExt, WidgetExt},
+    prelude::{
+        BoxExt, ButtonExt, CheckButtonExt, EditableExt, TextBufferExt, TextViewExt, WidgetExt,
+    },
     Align, Box, Orientation, TextIter, TextSearchFlags,
 };
 use std::{cell::RefCell, rc::Rc};
@@ -21,7 +23,7 @@ impl Form {
     // Constructors
 
     /// Create new `Self`
-    pub fn new(buffer: &Rc<RefCell<Option<Buffer>>>) -> Self {
+    pub fn new(buffer: &Rc<RefCell<Option<Subject>>>) -> Self {
         // Init components
         let close = close::new();
         let input = Rc::new(Input::new());
@@ -99,41 +101,44 @@ impl Form {
 // Tools
 
 fn find(
-    buffer: &Rc<RefCell<Option<Buffer>>>,
-    subject: &str,
+    subject: &Rc<RefCell<Option<Subject>>>,
+    request: &str,
     is_match_case: bool,
 ) -> Vec<(TextIter, TextIter)> {
     // Init matches holder
     let mut result = Vec::new();
 
     // Borrow buffer
-    match buffer.borrow().as_ref() {
-        Some(buffer) => {
+    match subject.borrow().as_ref() {
+        Some(subject) => {
             // Get iters
-            let buffer_start = buffer.text_buffer.start_iter();
-            let buffer_end = buffer.text_buffer.end_iter();
+            let buffer_start = subject.text_view.buffer().start_iter();
+            let buffer_end = subject.text_view.buffer().end_iter();
 
             // Cleanup previous search highlights
-            buffer
-                .text_buffer
-                .remove_tag(&buffer.tag.current, &buffer_start, &buffer_end);
-            buffer
-                .text_buffer
-                .remove_tag(&buffer.tag.found, &buffer_start, &buffer_end);
+            subject
+                .text_view
+                .buffer()
+                .remove_tag(&subject.tag.current, &buffer_start, &buffer_end);
+            subject
+                .text_view
+                .buffer()
+                .remove_tag(&subject.tag.found, &buffer_start, &buffer_end);
 
             // Begin new search
             let mut next = buffer_start;
             while let Some((match_start, match_end)) = next.forward_search(
-                subject,
+                request,
                 match is_match_case {
                     true => TextSearchFlags::TEXT_ONLY,
                     false => TextSearchFlags::CASE_INSENSITIVE,
                 },
                 None, // unlimited
             ) {
-                buffer
-                    .text_buffer
-                    .apply_tag(&buffer.tag.found, &match_start, &match_end);
+                subject
+                    .text_view
+                    .buffer()
+                    .apply_tag(&subject.tag.found, &match_start, &match_end);
                 next = match_end;
                 result.push((match_start, match_end));
             }

src/app/browser/window/tab/item/page/search/subject.rs

@@ -2,24 +2,27 @@ mod tag;
 
 use tag::Tag;
 
-use gtk::{prelude::TextBufferExt, TextBuffer};
+use gtk::{
+    prelude::{TextBufferExt, TextViewExt},
+    TextView,
+};
 
-pub struct Buffer {
-    pub text_buffer: TextBuffer,
+pub struct Subject {
+    pub text_view: TextView,
     pub tag: Tag,
 }
 
-impl Buffer {
+impl Subject {
     // Constructors
 
     /// Create new `Self`
-    pub fn new(text_buffer: TextBuffer) -> Self {
+    pub fn new(text_view: TextView) -> Self {
         // Init components
         // * create new tag objects required for new buffer,
         //   instead of re-use existing refs (maybe the bug)
-        let tag = Tag::new(text_buffer.tag_table());
+        let tag = Tag::new(text_view.buffer().tag_table());
 
         // Init `Self`
-        Self { text_buffer, tag }
+        Self { text_view, tag }
     }
 }